Mark B. Cohen, American lawyer and politician
Mark B. Cohen (born June 4, 1949) is a Democratic politician from Philadelphia, Pennsylvania. He represented District 202 in the Pennsylvania House of Representatives from June 10, 1974, until his defeat for reelection in the Democratic primary in 2016.

In 2017, Cohen ran for judge and won in both the primary and general election. On January 2, 2018, Cohen was sworn in for a 10-year term as a Judge on the Court of Common Pleas in Philadelphia.