Hans Moser (in Romania known sometimes as Ioan Moser; born 24 January 1937 in Timișoara, Romania) is a former Romanian-born German handball player and coach. He won two world championships as a player for the Romanian national team.
During his active player career, Moser, who is 1.92m tall, played as a center fielder.
In 2000, the official bulletin of the International Handball Federation, World Handball Magazine, chose Moser as a member of the "Team of the Century", together with team mates Cornel Penu and Gheorghe Gruia.
Moser studied at a vocational high school between 1952 and 1956. In Timișoara he played for Constructorul and Știința Timișoara (winning the field handball national championship in 1956).
In 1961, in West Germany, he became world champion with the Romania's national team. In 1964, in Czechoslovakia, besides becoming again world champion with the Romanian team, he was one of the three leading top scorers of the tournament. In the same year he was named "Best Handball Player in the World”.
In 1970, during the World Championship held in France, the French National Postal Service issued a stamp featuring Moser.
In 1968 he was allowed by the Romanian authorities to go to West Germany for six months as a playing coach for TV Milbertshofen. After the contract expired, he decided to defect. His wife and son, Richard, were visiting him at the time, so the decided to defect, too.
After he retired as an active player, he managed teams in Germany and Switzerland.
In 1996 he set up a series of businesses in Romania.
In 2004 he was investigated for forgery, use of forgery, and fraud. In 2008 he was sentenced by a court of law in Sighetu Marmației to one year and six months imprisonment, suspended for three and a half years.