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  <rr:ExpenseExampleHeading contextRef="Duration_29Sep2011_28Sep2012S000038382_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;Example &lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:RiskReturnHeading contextRef="Duration_29Sep2011_28Sep2012S000038382_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;F&lt;small&gt;UND&lt;/small&gt; S&lt;small&gt;UMMARY&lt;/small&gt; &lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;ICON O&lt;small&gt;PPORTUNITIES&lt;/small&gt; F&lt;small&gt;UND&lt;/small&gt; &lt;/font&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038382_Member">The Fund pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#8220;turns over&amp;#8221; its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund&amp;#8217;s performance. No portfolio turnover rate is provided because the Fund has not commenced operations as of the date of this prospectus. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_29Sep2011_28Sep2012S000038382_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;Other Expenses are based on estimated amounts for the Fund&amp;#8217;s first fiscal year, assuming the Fund raises $100,000. &lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
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  <dei:EntityRegistrantName contextRef="Duration_29Sep2011_28Sep2012">ICON FUNDS</dei:EntityRegistrantName>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038382_MemberC000118413_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:FeeWaiverOrReimbursementOverAssets decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038382_MemberC000118413_Member" unitRef="pure">-0.1306</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Sep2011_28Sep2012S000038382_MemberC000118413_Member" unitRef="USD">153</rr:ExpenseExampleYear01>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038382_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold Fund shares. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ShareholderFeesCaption contextRef="Duration_29Sep2011_28Sep2012S000038382_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;Shareholder Fees&lt;/b&gt; (fees paid directly from your investment)&lt;/font&gt;</rr:ShareholderFeesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_29Sep2011_28Sep2012S000038382_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;Annual Fund Operating Expenses &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment)&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038382_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&amp;#8217;s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be: &lt;/font&gt;</rr:ExpenseExampleNarrativeTextBlock>
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  <dei:DocumentPeriodEndDate contextRef="Duration_29Sep2011_28Sep2012">2012-09-27</dei:DocumentPeriodEndDate>
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  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038382_MemberC000118413_Member" unitRef="pure">0.1456</rr:ExpensesOverAssets>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Sep2011_28Sep2012S000038382_MemberC000118413_Member" unitRef="USD">2886</rr:ExpenseExampleYear03>
  <rr:ObjectiveHeading contextRef="Duration_29Sep2011_28Sep2012S000038382_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;Investment Objective/Goals &lt;/b&gt; &lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseHeading contextRef="Duration_29Sep2011_28Sep2012S000038382_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;Fees and Expenses of the Fund &lt;/b&gt; &lt;/font&gt;</rr:ExpenseHeading>
  <rr:PortfolioTurnoverHeading contextRef="Duration_29Sep2011_28Sep2012S000038382_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;Portfolio Turnover. &lt;/b&gt; &lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:StrategyHeading contextRef="Duration_29Sep2011_28Sep2012S000038382_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;&lt;b&gt;Principal Investment Strategies. &lt;/b&gt; &lt;/font&gt;</rr:StrategyHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038382_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;The Fund uses a quantitative methodology to identify industries and sectors in small company securities that ICON&amp;#8217;s methodology suggests are underpriced or overpriced relative to our calculation of intrinsic value. ICON believes that the equity markets go through themes over time, simply stated, stocks in industries that were market leaders at one time tend to become overpriced relative to intrinsic value, and stocks in industries that were not in favor tend to drop below intrinsic value. We sell industries we believe are overpriced and buy industries we believe are underpriced. The Fund may invest up to 25% of its assets in a single industry. ICON&amp;#8217;s combination of industry rotation and bottom-up valuation of small company equities distinguishes us from other small company investment managers. Normally, the Fund will invest at least 80% of its net assets (including any borrowings for investment purposes) in companies with a market capitalization that is within or below the range of companies in the S&amp;amp;P SmallCap 600 Index. The market capitalization of the companies in the Fund&amp;#8217;s portfolio and the S&amp;amp;P SmallCap 600 Index changes over time, and the Fund will not sell a stock just because the company has grown to a market capitalization outside the range. This strategy may not be changed unless Fund shareholders are given at least 60 days&amp;#8217; prior notice. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;The Fund invests primarily in equity securities, including common stocks, preferred stocks, and equity interests in trusts (including real estate investment trusts), partnerships, joint ventures, and limited liability companies. The Fund considers equity securities to include rights offerings and investments that convert into the equity securities. &lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038382_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;Investing in the Fund involves risk, including the risk that you may receive little or no return on your investment. When you redeem your shares, they may be worth more or less than what you paid for them, which means that you may lose a portion or all of the money you invested in the Fund. The Fund invests principally in stocks and other securities that may experience significant volatility at times and may fall sharply in response to adverse events. Individual securities also may experience dramatic movements in price. In addition to the risks of overall market movements, risks of events affecting a particular industry or sector, and risks that are specific to an individual security, the principal risks of investing in the Fund, which could adversely affect its performance, include: &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;Small Company Risk.&lt;/b&gt; Securities of small companies generally involve greater risks than investments in larger companies. Small companies may have limited management experience or depth, limited access to capital, or limited products or services, or operate in markets that have not yet been established. Small company securities tend to be more volatile and less liquid than equity securities of larger companies. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;Value Investing Risk&lt;/b&gt;. The prices of value stocks may lag the stock market for long periods of time if the market fails to recognize ICON&amp;#8217;s evaluation of the company&amp;#8217;s intrinsic worth. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;Active Management Risk.&lt;/b&gt; The Fund is subject to the risk that the investment adviser&amp;#8217;s judgments about the attractiveness, value, or potential appreciation of the Fund&amp;#8217;s investments may prove to be incorrect. If the securities selected and strategies employed by the Fund fail to produce the intended results, the Fund could underperform other funds with similar objectives and investment strategies. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;Industry and Concentration Risk. &lt;/b&gt; Companies that have similar lines of business are grouped together in broad categories called industries. Certain industries are grouped together in broader categories called sectors. The Fund may overweight industries within various sectors and may invest up to 25% of the Fund&amp;#8217;s total assets in a single industry. The fact that the Fund may overweight a specific industry or industries may cause the Fund&amp;#8217;s performance to be more susceptible to the economic, business or other developments that affect those industries or sectors. This overweighting means the Fund may be less diverse and more volatile than its benchmark. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;Stock Market Risk. &lt;/b&gt; The value of the stocks and other securities owned by the Fund will fluctuate depending on the performance of the companies that issued them, general market and economic conditions, and investor confidence. &lt;/font&gt;</rr:RiskNarrativeTextBlock>
  <rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="Duration_29Sep2011_28Sep2012S000038382_Member">January 31, 2014</rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
  <rr:RiskLoseMoney contextRef="Duration_29Sep2011_28Sep2012S000038382_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;Investing in the Fund involves risk, including the risk that you may receive little or no return on your investment.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:ProspectusDate contextRef="Duration_29Sep2011_28Sep2012">2012-09-28</rr:ProspectusDate>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038382_MemberC000118413_Member" unitRef="pure">0.0075</rr:ManagementFeesOverAssets>
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  <rr:OtherExpensesOverAssets id="Item_2" decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038382_MemberC000118413_Member" unitRef="pure">0.1381</rr:OtherExpensesOverAssets>
  <rr:NetExpensesOverAssets id="Item_3" decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038382_MemberC000118413_Member" unitRef="pure">0.015</rr:NetExpensesOverAssets>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038382_MemberC000118413_Member" unitRef="pure">0</rr:RedemptionFeeOverRedemption>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038382_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;Seeks capital appreciation. &lt;/font&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:RiskHeading contextRef="Duration_29Sep2011_28Sep2012S000038382_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;Principal Investment Risks &lt;/b&gt;&lt;/font&gt;</rr:RiskHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_29Sep2011_28Sep2012S000038382_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;Performance History &lt;/b&gt;&lt;/font&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038382_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;The Fund is a new fund with no performance history. &lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:PerformanceOneYearOrLess contextRef="Duration_29Sep2011_28Sep2012S000038382_Member">&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;The Fund is a new fund with no performance history. &lt;/font&gt;</rr:PerformanceOneYearOrLess>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038382_Member">&lt;div style="display:none"&gt;~ http://www.iconfunds.com/role/ScheduleExpenseExampleTransposedICONOpportunitiesFund column period compact * ~&lt;/div&gt;

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  <dei:DocumentEffectiveDate contextRef="Duration_29Sep2011_28Sep2012">2012-09-28</dei:DocumentEffectiveDate>
  <link:footnoteLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
    <link:loc xlink:type="locator" xlink:href="#Item_2" xlink:label="OtherExpensesOverAssets" />
    <link:footnote xlink:type="resource" xlink:label="footnote_OtherExpensesOverAssets" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_OtherExpensesOverAssets">Other Expenses are based on estimated amounts for the Fund's first fiscal year, assuming the Fund raises $100,000.</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="OtherExpensesOverAssets" xlink:to="footnote_OtherExpensesOverAssets" />
    <link:loc xlink:type="locator" xlink:href="#Item_3" xlink:label="NetExpensesOverAssets" />
    <link:footnote xlink:type="resource" xlink:label="footnote_NetExpensesOverAssets" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_NetExpensesOverAssets">ICON Advisers has contractually agreed to limit the total expenses of the Fund (excluding interest, taxes, brokerage and extraordinary expenses) to an annual rate of 1.50%. This expense limitation may be terminated at any time after January 31, 2014 upon 30 days written notice of termination to the Fund's Board of Trustees. ICON is entitled to reimbursement from the Fund of any fees waived pursuant to this arrangement if such reimbursement does not cause the Fund to exceed existing expense limitations and the reimbursement is made within three years after the expenses were reimbursed or absorbed.</link:footnote>
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