PIM or Pim may refer to:

Computing

• Parallel inference machine, an intended fifth generation computer
• Personal information management
• Personal information manager software
• Personal Information Module for PalmDOS
• Personal Iterations Multiplier for VeraCrypt
• Platform-independent model in software engineering
• Protocol Independent Multicast, Internet protocols
• Processor-in-memory, CPU and memory on the same chip

Engineering, science, and mathematics

• Passive intermodulation of signals
• Phosphatidylmyo-inositol mannosides, a glycolipid component of the cell wall of Mycobacterium tuberculosis
• Principal indecomposable module in mathematical module theory

Business

• Product information management
• Partnerized Inventory Management
• Pim Brothers & Co., large Irish family business founded in the nineteenth century

People

Given name

• Pim (name)

Surname

• Bedford Clapperton Trevelyan Pim, (1826-1886), Royal Navy officer
• Jonathan Pim (1806–1885), Irish politician
• Jonathan Pim (1858–1949), Irish lawyer and politician
• Joshua Pim (1869-1942), Irish doctor and tennis player
• Raymond Pim (1897–1993), American politician

Fictional

• Pim Diffy, a character in TV series Phil of the Future

Places

• Pimhill or Pim Hill, England
• Pim Island, Canada
• Pim (river), Russia
• Pondok Indah Mall, Indonesia

Other uses

• Pacific Islands Monthly, a news magazine, discontinued 2000
• Penalty (ice hockey) (Penalties infraction minutes)
• Pim Fortuyn List, Dutch political party
• Pim weight in ancient Israel
• Prague International Marathon
• Providence Industrial Mission
• Public Illumination Magazine