Theodore Shapiro (born September 29, 1971) is an American composer.

Shapiro was born in Washington, D.C. He is best known for his film scores, particularly for the comedies State and Main, 13 Going on 30, Along Came Polly, The Devil Wears Prada, Fun with Dick and Jane, Idiocracy, You, Me and Dupree, Wet Hot American Summer, Marley & Me, Tropic Thunder, the Jay Roach film Dinner for Schmucks and was one of the composers for Diary of a Wimpy Kid. He has also written other orchestral works.

He earned his bachelor's degree in music from Brown University in 1993.