|Full name||Christoph Westerthaler|
|Date of birth||January 11, 1965|
|Place of birth||Silz, Austria|
|Height||1.70 m (5 ft 7 in)|
|Playing position||midfielder or striker|
|1983–1986||FC Wacker Innsbruck||30||(7)|
|1988–1994||FC Swarovski Tirol||167||(66)|
|1994–1995||SK Vorwärts Steyr||49||(14)|
|2002–2005||FC Wacker Tirol (assistant)|
|2011–2014||SV Horn (assistant)|
|2015–2016||SV Horn (assistant)|
|2016||SV Horn (interim)|
|2016–2017||SV Horn (assistant)|
|2017||SV Horn (interim)|
|* Senior club appearances and goals counted for the domestic league only.
Nicknamed Gischi, Westerthaler was a small-built striker who started his professional career at FC Wacker Innsbruck and stayed with them for 9 years, split by a 2 season period at LASK Linz. With the Tyrolean side he won 2 league titles and 2 domestic cups. In 1994, he moved to SK Vorwärts Steyr only to rejoin LASK two years later. In 1997, he moved abroad and played in Germany for the two major Frankfurt teams and VfL Osnabrück.
In the summer of 2001 he finished his career as a player because of a knee cartilage damage.
He made his debut for Austria in an October 1989 friendly match against Malta but was not considered for the 1990 FIFA World Cup. He earned 6 caps, no goals scored. His final international game was a November 1993 World Cup qualification match against Sweden.
- Austrian Football Bundesliga (2):
- 1989, 1990
- Austrian Cup (1):
- 1989, 1993
- Austrian Bundesliga Top Goalscorer (1):
- 1992 
- Westerthaler heuert beim SV Horn als Co-Trainer an, relevant.at, 5 January 2011
- Christoph Westerthaler Horn-Trainer‚ news.at, 29 September 2014
- Japanischer Investor: Wacker rätselt über Horn-Projekt‚ tt.com, 10 June 2015
- Johann Kleer und SV Horn gehen getrennte Wege‚ meinbezirk.at, 4 April 2016
- Masanori Hamayoshi wird neuer Cheftrainer‚ svhorn.at, 11 April 2016
- Carsten Jancker neuer Trainer bei Erste-Liga-Absteiger Horn‚ tt.com, 1 June 2017
- "Österreichs Torschützenkönige". www.oberliga-a.at. Archived from the original on September 15, 2007. Retrieved 2008-09-03.