Exhibit 99.1

FOR IMMEDIATE RELEASE

Contact: M. Keith Waddell

Vice Chairman, President and

Chief Financial Officer

(650) 234-6000

ROBERT HALF INTERNATIONAL INC. REPORTS REVENUES AND EARNINGS FOR THE FIRST QUARTER OF 2007

MENLO PARK, California, April 19, 2007 -- Robert Half International Inc. (NYSE symbol: RHI) today reported revenues and earnings for the first quarter ended March 31, 2007.

For the quarter ended March 31, 2007, net income was $70.7 million or $.42 per share, on revenues of $1.1 billion. Net income for the prior year’s first quarter was $65.5 million or $.38 per share, on revenues of $943.9 million.

Harold M. Messmer, Jr., chairman and chief executive officer of Robert Half International Inc., said: “Revenues and income per share increased 16 percent and 11 percent, respectively, from the first quarter of 2006. In our staffing divisions, we saw a continuation of the broad-based revenue growth that we have seen for several quarters.

“The financial divisions continued to perform well, particularly our permanent placement business, Robert Half Finance & Accounting,” he said. “International staffing operations also had a strong quarter.”

Messmer added, “Protiviti, our internal audit and risk consulting subsidiary, expanded its client base and service offerings during the quarter. Revenues for Protiviti grew 7 percent on a year-over-year basis, led by its international operations.” Protiviti, which celebrates its fifth anniversary in May, is in more than 50 major cities in North America, Europe, Latin America and the Asia/Pacific region.

Robert Half International management will conduct a conference call today at 5 p.m. EDT following the release. The dial-in number is 1-800-862-9098 (+1-785-424-1051 outside the United States) and the passcode is “Robert Half International.” A taped recording of this call will be available for replay beginning at approximately 8 p.m. EDT today and ending at 8 p.m. EDT on April 26. The dial-in number for the replay is 1-800-283-8520 (+1-402-220-0870 outside the United States). The conference call also will be archived in audio format on the company’s website at www.rhi.com.

Founded in 1948, Robert Half International Inc. is the world’s first and largest specialized staffing firm. RHI is a recognized leader in professional consulting and staffing services and is the parent company of Protiviti^® (www.protiviti.com), a leading independent internal audit and risk consulting firm. The company’s specialized staffing divisions include Accountemps^®, Robert Half^® Finance & Accounting and Robert Half^® Management Resources, for temporary, full-time and project professionals, respectively, in the fields of accounting and finance; OfficeTeam^®, for highly skilled temporary administrative support personnel; Robert Half^® Technology, for information technology professionals; Robert Half^® Legal, for legal personnel; and The Creative Group^®, for advertising, marketing and web design professionals. The company has staffing and consulting operations in more than 400 locations worldwide.

Certain information contained in this press release may be deemed forward-looking statements regarding events and financial trends that may affect the company’s future operating results or financial positions. These statements may be identified by words such as “estimate”, “forecast”, “project”, “plan”, “intend”, “believe”,

(more)

“expect”, “anticipate”, or variations or negatives thereof, or by similar or comparable words or phrases. Forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially from those expressed in the statements.

These risks and uncertainties include, but are not limited to, the following: changes in levels of unemployment and other economic conditions in the United States or foreign countries where the company does business, or in particular regions or industries; reduction in the supply of candidates for temporary employment or the company’s ability to attract candidates; the entry of new competitors into the marketplace or expansion by existing competitors; the ability of the company to maintain existing client relationships and attract new clients in the context of changing economic or competitive conditions; the impact of competitive pressures, including any change in the demand for the company’s services, on the company’s ability to maintain its margins; the possibility of the company incurring liability for its activities, including the activities of its temporary employees, or for events impacting its temporary employees on clients’ premises; the possibility that adverse publicity could impact the company’s ability to attract and retain clients and candidates; the success of the company in attracting, training, and retaining qualified management personnel and other staff employees; whether governments will impose additional regulations or licensing requirements on personnel services businesses in particular or on employer/employee relationships in general; whether there will be ongoing demand for Sarbanes-Oxley or other regulatory compliance services; and litigation relating to prior or current transactions or activities, including litigation that may be disclosed from time to time in the company’s SEC filings.

Additionally, with respect to Protiviti, other risks and uncertainties include the fact that future success will depend on its ability to retain employees and attract clients; there can be no assurance that there will be ongoing demand for Sarbanes-Oxley or other regulatory compliance services; failure to produce projected revenues could adversely affect financial results; and there is the possibility of involvement in litigation relating to prior or current transactions or activities.

Because long-term contracts are not a significant part of the company’s business, future results cannot be reliably predicted by considering past trends or extrapolating past results. The company undertakes no obligation to update information contained in this release.

A copy of this release is available at www.rhi.com.

ATTACHED:	Summary of Operations
	Supplemental Financial Information

2

ROBERT HALF INTERNATIONAL INC. AND SUBSIDIARIES

SUMMARY OF OPERATIONS

(in thousands, except per share amounts)

	Quarter Ended March 31,
	2007			2006
	(Unaudited)
Net service revenues	$	1,097,425		$	943,924
Direct costs of services		636,696			550,720
Gross margin		460,729			393,204
Selling, general and administrative expenses		348,379			287,482
Amortization of intangible assets		274			146
Interest income		(4,017	)		(3,497	)
Income before income taxes		116,093			109,073
Provision for income taxes		45,386			43,570
Net income	$	70,707		$	65,503
Diluted net income per share	$	.42		$	.38
Shares:
Basic		163,841			167,390
Diluted		168,883			173,974

3

ROBERT HALF INTERNATIONAL INC. AND SUBSIDIARIES

SUPPLEMENTAL FINANCIAL INFORMATION

(in thousands)

	Quarter Ended March 31,
	2007		2006
	(Unaudited)
REVENUES:
Accountemps	$	416,293	$	355,577
OfficeTeam		207,618		186,196
Robert Half Technology		98,852		84,630
Robert Half Management Resources		145,594		120,366
Robert Half Finance & Accounting		98,686		75,484
Protiviti		130,382		121,671
Total	$	1,097,425	$	943,924
GROSS MARGIN:
Temporary and consultant staffing	$	320,477	$	274,574
Permanent placement staffing		98,686		75,484
Risk consulting and internal audit services		41,566		43,146
Total	$	460,729	$	393,204
OPERATING INCOME:
Temporary and consultant staffing	$	87,797	$	76,833
Permanent placement staffing		20,112		16,900
Risk consulting and internal audit services		4,441		11,989
Total	$	112,350	$	105,722
SELECTED CASH FLOW INFORMATION:
Amortization of intangible assets	$	274	$	146
Depreciation expense	$	15,919	$	14,961
Capital expenditures	$	24,099	$	24,312
Open market repurchases of common stock (shares)		2,032		1,225

4

ROBERT HALF INTERNATIONAL INC. AND SUBSIDIARIES

SUPPLEMENTAL FINANCIAL INFORMATION

(in thousands)

	March 31,
	2007		2006
	(Unaudited)
SELECTED BALANCE SHEET INFORMATION:
Cash and cash equivalents	$	449,902	$	472,652
Accounts receivable, less allowances	$	561,112	$	480,333
Total assets	$	1,489,365	$	1,375,877
Current liabilities	$	430,024	$	363,041
Notes payable and other indebtedness, less current portion	$	3,825	$	4,168
Total stockholders’ equity	$	1,044,603	$	999,888

5