Michael L. Weinstein (/ˈwaɪnstiːn/) is an American attorney, businessman, and former Air Force officer. He is the founder and president of the Military Religious Freedom Foundation and author of With God on Our Side: One Man's War Against an Evangelical Coup in America's Military and No Snowflake in an Avalanche, both of which describe purported Christian evangelical and fundamentalist proselytizing by some members of the military.