Monica Piga Wallace is a politician from New York State.

A Democrat, Wallace was elected to the New York State Assembly from the 143rd Assembly District in 2016.

[1] The district comprised the entirety of the towns of Cheektowaga and Lancaster.

Wallace was elected to succeed Republican Angela Wozniak, who did not seek re-election.

[2] In the 2024 New York State Assembly election, Wallace was unseated by Republican Patrick Chludzinski.