Robert Ernest Huyser (June 14, 1924 – September 22, 1997) was a four-star general in the United States Air Force who served as Deputy Commander in Chief, United States European Command (DCINCEUR) from 1975 to 1979; and as Commander in Chief, Military Airlift Command (CINCMAC) from 1979 to 1981.

Leo Esser (born February 17, 1907, date of death unknown) was a German diver who competed in the 1932 Summer Olympics and in the 1936 Summer Olympics. He was born in Düsseldorf. In 1932 he finished fifth in the 3 metre springboard event. Four years later he finished sixth in the 3 metre springboard competition.