Walter Haummer (November 22, 1928 – October 5, 2008) was an Austrian footballer. He played for SC Wacker Wien and the Austria national football team as forward. He took part at the 1954 World Cup in Switzerland.
Haummer spent his entire playing career from 1949 to 1961 at SC Wacker Vienna. In 258 league games he scored a total of 140 goals.
On 7 May 1952he made his debut in a friendly against Ireland in the Austrian national team. In the 6-0 victory for the Austrians, he contributed a goal to make it 4-0. Haummer was named to Austria's squad for the 1954 World Cup but he did not play. In 1958 he was part of the qualifying for the World Cup, he played in three out of four games. After successfully qualifying, he was not part of the tournament squad. Between 1952 and 1957 Haummer played 16 international matches for Austria, in which he scored four goals.