Katharina Althaus (born 23 May 1996) is a German ski jumper who has competed at World Cup level since the 2011/12 season. She finished runner-up in the 2017/18 season overall standings, and won an individual silver medal at the 2018 Winter Olympics.
She made her World Cup debut in the 2011/12 season. She became the mixed team ski jumping world champion together with her German team mates Carina Vogt, Richard Freitag, and Severin Freund in Falun at the FIS Nordic World Ski Championships 2015. She took her first World Cup win on 12 February 2017 in Ljubno.
World Championship results
|Year||Normal hill||Team NH||Mixed team|
|1||2016/17||12 February 2017||Ljubno||Savina Ski Jumping Center HS95||NH|
|2||2017/18||2 December 2017||Lillehammer||Lysgårdsbakken HS98||NH|
|3||3 December 2017||Lillehammer||Lysgårdsbakken HS140||LH|
|4||3 March 2018||Râșnov||Trambulina Valea Cărbunări HS97||NH|
|5||2018/19||2 December 2018||Lillehammer||Lysgårdsbakken HS140||LH|
|6||15 December 2018||Prémanon||Les Tuffes HS90||NH|
|7||16 December 2018||Prémanon||Les Tuffes HS90||NH|