Anselmo Hermenegildo Joaquin Atienza (April 21, 1909 – circa 1989) was a Filipino politician.

He served as 13th Mayor of Manila (1944–1945) and as a member of the Philippine House of Representatives (1946–1952).

During World War II, he was imprisoned by the Japanese in Fort Santiago, alongside guerilla leader Guillermo Nakar.

He became a strong opponent of the amnesty granted to collaborationists with the Japanese occupation.

2613, the Reciprocity Immigration Bill, which would have barred Australians from the country in response to the treatment of Lorenzo Gamboa under the White Australia policy.