Heinrich "Heini" Isser (12 May 1928 – 18 May 2004) was an Austrian bobsledder-luger who competed during the 1950s and 1960s. He was born in Matrei in Osttirol.
Isser won five medals at the European luge championships with two golds (Men's doubles: 1952, 1954) and three silvers (Men's singles: 1953, Men's doubles: 1951, 1953).
Isser also won a bronze medal in the Four-man event at the 1962 FIBT World Championships in Garmisch-Partenkirchen, West Germany. He also finished tenth in the four-man event as well as twelfth in the two-man event at the 1956 Winter Olympics in Cortina d'Ampezzo.