Penry may refer to:

• David Penry-Davey (1942–2015), Judge of the High Court of England and Wales
• John Penry (1559–1593), Welsh Protestant
• Johnny Paul Penry (born 1956), American rapist
• Josh Penry (born 1976) American politician
• Mary Penry (1735–1804), Welsh-born woman in colonial Pennsylvania
• Peter Penry-Jones (1938–2009), Welsh actor
• Richard Allen Penry (1948–1994), United States Army soldier
• Rupert Penry-Jones (born 1970), English actor

• Penry Powell Palfrey (1830–1902), British stained glass designer and painter
• Penry Williams (1866–1945), English politician
• Penry Williams (artist) (1802–1885), Welsh artist
• Penry Williams (historian) (1925–2013), Welsh historian
• Penry Gustavson (born 1970), American politician

• Penry v. Johnson, 532 U.S. 782 (2001), is a United States Supreme Court
• Penry v. Lynaugh, 492 U.S. 302 (1989), sanctioned the death penalty for mentally disabled offenders