Anja Althaus (born 3 September 1982) is a retired German handball player who most recently played for Győri Audi ETO KC and formerly was a member of the German national team. She won the Champions League three times in her career (twice with Viborg, once with Győr). Althaus made her debut on the German team in 2002. She received a bronze medal at the 2007 World Championship. She competed at the 2008 Summer Olympics in Beijing, where Germany finished 11th.