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 THIRD QUARTER OF 2008

MENLO PARK, California, October 22, 2008 — Robert Half International Inc. (NYSE symbol: RHI) today reported revenues and earnings for the third quarter ended September 30, 2008.

For the quarter ended September 30, 2008, net income was $65.8 million or $.43 per share, on revenues of $1.16 billion. Net income for the prior year’s third quarter was $74.0 million or $.46 per share, on revenues of $1.18 billion.

For the nine months ended September 30, 2008, net income was $211.2 million or $1.37 per share, on revenues of $3.61 billion. For the nine months ended September 30, 2007, net income was $217.4 million or $1.32 per share, on revenues of $3.43 billion.

Harold M. Messmer, Jr., chairman and chief executive officer of Robert Half International Inc., said: “Our third-quarter results clearly were impacted by the turmoil in the global financial markets. Revenues were down 2 percent from the third quarter of last year and income per share declined 6 percent during this period. Clients became increasingly cautious with their hiring actions as the quarter progressed.”

Messmer pointed out that the quarter was not without its bright spots. “Revenues from our international staffing operations, which make up 30 percent of total staffing revenue, grew 15 percent year over year on a constant-currency basis,” he said. “Our technology division also reported positive year-over-year revenue growth.”

Messmer noted that the company’s return on equity was 26 percent for the third quarter and has averaged 26 percent for the past five years.

Robert Half International management will conduct a conference call today at 5 p.m. EDT following the release. The dial-in number is 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 October 29. The dial-in number for the replay is 800-283-8217 (+1-402-220-0868 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. It also is the parent company of Protiviti^®, a global consulting and internal audit firm composed of experts in risk and advisory services. Robert Half’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.

Robert Half International 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”, “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

ROBERT HALF INTERNATIONAL INC. AND SUBSIDIARIES

SUMMARY OF OPERATIONS

(in thousands, except per share amounts)

	Quarter Ended September 30,						Nine Months Ended September 30,
	2008			2007			2008			2007
	(Unaudited)						(Unaudited)
Net service revenues	$	1,160,086		$	1,179,045		$	3,610,717		$	3,425,598
Direct costs of services		676,513			678,252			2,099,532			1,971,391
Gross margin		483,573			500,793			1,511,185			1,454,207
Selling, general and administrative expenses		374,120			381,031			1,161,944			1,104,046
Amortization of intangible assets		618			748			1,877			1,840
Interest income		(1,318	)		(3,125	)		(4,838	)		(10,215	)
Income before income taxes		110,153			122,139			352,202			358,536
Provision for income taxes		44,332			48,176			141,029			141,140
Net income	$	65,821		$	73,963		$	211,173		$	217,396
Diluted net income per share	$	.43		$	.46		$	1.37		$	1.32
Shares:
Basic		150,839			158,480			152,754			161,014
Diluted		152,786			161,903			154,561			165,166

ROBERT HALF INTERNATIONAL INC. AND SUBSIDIARIES

SUPPLEMENTAL FINANCIAL INFORMATION

(in thousands)

	Quarter Ended September 30,				Nine Months Ended September 30,
	2008		2007		2008		2007
	(Unaudited)				(Unaudited)
REVENUES:
Accountemps	$	434,660	$	443,719	$	1,361,233	$	1,291,766
OfficeTeam		209,112		215,163		647,677		638,532
Robert Half Technology		112,299		110,174		336,117		314,245
Robert Half Management Resources		156,097		156,637		491,081		453,348
Robert Half Finance & Accounting		108,457		112,791		351,921		326,500
Protiviti		139,461		140,561		422,688		401,207
Total	$	1,160,086	$	1,179,045	$	3,610,717	$	3,425,598
GROSS MARGIN:
Temporary and consultant staffing	$	334,389	$	345,540	$	1,038,985	$	1,001,652
Permanent placement staffing		108,412		112,786		351,829		326,495
Risk consulting and internal audit services		40,772		42,467		120,371		126,060
Total	$	483,573	$	500,793	$	1,511,185	$	1,454,207
OPERATING INCOME:
Temporary and consultant staffing	$	90,148	$	95,511	$	285,542	$	273,968
Permanent placement staffing		15,317		20,262		57,893		64,202
Risk consulting and internal audit services		3,988		3,989		5,806		11,991
Total	$	109,453	$	119,762	$	349,241	$	350,161
SELECTED CASH FLOW INFORMATION:
Amortization of intangible assets	$	618	$	748	$	1,877	$	1,840
Depreciation expense	$	17,981	$	17,835	$	53,885	$	51,085
Capital expenditures	$	16,650	$	17,209	$	55,487	$	63,592
Open market repurchases of common stock (shares)		863		3,502		5,358		9,161

ROBERT HALF INTERNATIONAL INC. AND SUBSIDIARIES

SUPPLEMENTAL FINANCIAL INFORMATION

(in thousands)

	September 30,
	2008		2007
	(Unaudited)
SELECTED BALANCE SHEET INFORMATION:
Cash and cash equivalents	$	373,692	$	328,657
Accounts receivable, less allowances	$	586,762	$	628,254
Total assets	$	1,523,950	$	1,487,523
Current liabilities	$	467,495	$	488,522
Notes payable and other indebtedness, less current portion	$	3,541	$	3,748
Total stockholders’ equity	$	1,039,050	$	983,242