Ann Martinelli Livermore (born 23 August 1958, in Greensboro, North Carolina) was formerly an Executive Vice President at Hewlett-Packard, where from 2004 until June 14, 2011 she led the HP Enterprise Business business unit of HP. After being relieved of day-to-day operations, she was elected to board of directors of HP. At the time, she was a 29-year veteran of the company and among existing senior management, the longest-service executive.