Pecker, a character from the Jak and Daxter video game series

Pecker, also known as Pequeño Pecker, is a Catalonian indie musician

A slang term for penis; "pecker checker" is medical/military slang for a urologist or medical personnel in general

Spirits, as in "Keep your pecker up" as an encouragement to residents during the World War II London Blitz

Pecker, a 1998 movie directed by John Waters, and its soundtrack

Boris Pecker (an allusion to both Boris Becker and penis), a fictional character in Ben Elton's bestseller Dead Famous

1629 Pecker, an asteroid discovered in 1952 by Louis Boyer

Pecker, or more fully, "pecker head", is a slang term for an electric motor terminal connection box.