SIPP may refer to: Self-invested personal pension, a type of United Kingdom pension plan Simple Internet Protocol Plus, former name of IPv6 SIPP memory, single in-line pin package, a type of computer memory Standard Interline Passenger Procedure, ACRISS vehicle category codes Survey of Income and Program Participation, a survey of household income and transfer payments SIPp, test tool / traffic generator for Session Initiation Protocol "The Sipp" or Sipp, shortened form of Mississippi, a state of the United States of America Stable Image Platform Program initiative from Intel