|Date of birth||July 20, 1901|
|Place of birth||Solotvyn, Austria-Hungary|
|Date of death||December 24, 1952(aged 51)|
|Place of death||Vienna, Austria|
|Playing position||Inside Forward|
|1926–1928||New York Giants||84||(28)|
|1928–1929||New York Hakoah||?||(21)|
|1931–1933||New York Americans|
|1933–1934, 1936||Hakoah Vienna|
|* Senior club appearances and goals counted for the domestic league only.
Moses “Moritz” or “Moschkatz” Häusler (born July 20, 1901 in Solotvyn; died December 24, 1952 in Vienna) was an early twentieth century Austrian football inside forward who played professionally in Austria and the United States. He also earned seven caps with the Austrian national team between 1923 and 1925.
Häusler began his career with youth teams in Romania and Armenia. In 1918, he signed with Hakoah Vienna in Austria, but did not break into the first team until the 1919-1920 season. However, he remained a minor role player until the 1922-1923 season. In 1926, Hakoah Vienna toured the United States. Impressed by the high pay and low level of anti-Semitism compared to Europe, Häusler and several of his team mates decided to return to the United States to play in the American Soccer League. In the fall of 1926, Häusler signed with the New York Giants. In 1928, the ASL and the United States Soccer Federation began a struggle for supremacy in U.S. soccer. Known as the “Soccer War”, it led to the USFA declaring the ASL an “outlaw league” in the fall of 1928. At that time, Häusler had already played six games with the Giants. Declining to play with an “outlaw team” Häusler jumped to the competing, and legal, Eastern Professional Soccer League where he signed with New York Hakoah. New York Hakoah took second place in the ESL and won the 1929 National Challenge Cup with Häusler scoring a goal in Hakoah’s 3-0 victory over St. Louis Madison Kennel. At the end of 1929, the ASL made peace with USFA which brought about the merger of the ASL and ESL and the merger of the ESL New York Hakoah with the ASL Brooklyn Hakoah to form the Hakoah All-Stars. Häusler joined the new team and remained with it until 1931. That year, he signed with the New York Americans as the ASL began to collapse. In 1933, the Americans lost in the 1933 National Challenge Cup championship series. Following that loss, Häusler returned to Austria, where he rejoined Hakoah Vienna for the 1933-1934 season. He retired and became a coach, but returned to Hakoah Vienna at the end of the 1935-1936 season.
Häusler earned seven caps, scoring two goals, with the Austria national team. His first came in an August 1923 victory over Finland. He scored in his second game with the national team, a win over Romania. His last game was a November 1925 game with Switzerland.
Following his retirement in 1934, Häusler moved to Poland to coach Garbarnia Kraków. He later coached in northern Europe and Luxembourg.
In 1950, he returned to Vienna, where he owned a coffee house until his death in 1952.