Peer or peeress may refer to:

Sociology Peer, an equal in age, education or social class; see Peer group Peer, a member of the peerage

Computing Peer, one of several functional units in the same layer of a network; See Peer group (computer networking) Peer (networking), a computer system connected to others on a network Peer, a computer network in a voluntary interconnection of administratively separate Internet networks in peering

Organizations Partnership for European Environmental Research, a network of seven European environmental research centres Public Employees for Environmental Responsibility, an organization of anonymous public employees promoting environmental responsibility

People Peer (name), a list of people with the given name and the surname

Other uses the title character of Peer Gynt, a play by Henrik Ibsen Peer, Belgium, a municipality and city

See also Pe'er, a list of people with the given name or surname Peers (disambiguation), a surname and place name Pir (Sufism) (also spelled Peer) Pier (disambiguation) Pir (disambiguation)