List of Famous people who are 81

Francesc-Xavier Ciuraneta-Aymí was a Spanish Roman Catholic bishop.

Johan Anthony Willem "Hans" Kamp is a Dutch philosopher and linguist, responsible for introducing discourse representation theory (DRT) in 1981.

Philip Proctor is an American actor, voice actor and a member of the Firesign Theatre. He has performed voice-over work for video games, films and television series.

Peter Arthur Diamond is an American economist known for his analysis of U.S. Social Security policy and his work as an advisor to the Advisory Council on Social Security in the late 1980s and 1990s. He was awarded the Nobel Memorial Prize in Economic Sciences in 2010, along with Dale T. Mortensen and Christopher A. Pissarides. He is an Institute Professor at the Massachusetts Institute of Technology. On June 6, 2011, he withdrew his nomination to serve on the Federal Reserve's board of governors, citing intractable Republican opposition for 14 months.

Stanley Richard Jaffe is an American film producer, responsible for movies such as Fatal Attraction, The Accused, and Kramer vs. Kramer.