St. Peter's Catholic Church is a church located on Federal Street in downtown Portland, Maine, United States.

Owned by the Roman Catholic Diocese of Portland, the church was built in 1929, and—being in the city's Italian neighborhood centered on India Street—today hosts Italian cultural events, including the annual Italian Bazaar on the feast day of Saint Rocco.

[2] An engraving above the middle of its three doors reads "Tu Es Petrus" (You are Peter).

As of 2024[update], its priest is the Very Revd.

[3] This article about a church or other Christian place of worship in Maine is a stub.