Grumpy Old Men or grumpy old man may refer to:

People

  • "Grumpy old men", referring to geriatric psychology or the pseudoscientific

Art, entertainment, and media

  • "Grumpy Old Man", a 2011 episode of Family Guy
  • Grumpy Old Men (film), a 1993 comedy film starring Jack Lemmon and Walter Matthau
  • Grumpy Old Men (musical), a 2018 stage musical based on the film
  • Grumpy Old Men (TV series), a 2000s BBC Two television programme
  • Grumpy Old Men, an Australian TV sports programme hosted by Kevin Bartlett
  • Grumpy Old Man, a character portrayed by Dana Carvey on the television show Saturday Night Live: See