Maria Victoria Sy-Alvarado (née Reyes; born March 23, 1957) is a Filipino politician.

She is the wife of her predecessor in Congress, Wilhelmino Sy-Alvarado, who served as the Vice Governor of Bulacan from 2019 to 2022.

Despite her successful reelection bid in 2010 over former Governor Roberto Pagdanganan, her seat in the Congress is in vacancy due to the deferring of the election made by the election for the new Malolos City representation.

Malolos was ruled by the Supreme Court unconstitutional, saying it violated Article VI Section 5 (3) of the Constitution and Section 3 of the Ordinance attached to constitution; Malolos was ruled not to have exceeded the 250,000 population for a separate legislative district.

A special election was held on November 13, 2010, and she was successful in her race.