Powers of Attorney Act is a short title for various pieces of legislation in the United Kingdom.

Evidence and Powers of Attorney Act 1940 (3 & 4 Geo. 6. c. 28) Evidence and Powers of Attorney Act 1943 (6 & 7 Geo. 6. c. 18) Powers of Attorney Act 1971 (c. 27) Powers of Attorney Act (Northern Ireland) 1971 (c. 18) Enduring Powers of Attorney Act 1985 (c. 28) Powers of Attorney Act 2023 (c. 42)