Alexander M. Quinn (1866 – May 4, 1906) was a soldier in the United States Army who received the Medal of Honor for his actions in the Spanish–American War. Quinn joined the army from Philadelphia, Pennsylvania in May 1889, but was discharged after only a few months of service. He rejoined the army in June 1891, and Philippine–American War. He was mortally wounded while serving in the Philippines, and died on May 4th, 1906.