ROBERT HALF INTERNATIONAL ANNOUNCES QUARTERLY DIVIDEND

MENLO PARK, California, May 2, 2006 -- Robert Half International Inc. (NYSE symbol: RHI) today announced that its board of directors has approved a quarterly cash dividend of $.08 per share. The cash dividend will be paid on June 15, 2006, to all shareholders of record as of May 25, 2006.

Founded in 1948, Robert Half International Inc. (RHI) 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^®, 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.

Robert Half International has staffing and consulting operations in more than 390 locations worldwide.