|Date of birth||21 September 1981|
|Place of birth||Harare, Zimbabwe|
|Height||1.91 m (6 ft 3 in)|
|Weight||109 kg (17 st 2 lb) |
|School||Wellington College, Berkshire, UK|
|Notable relative(s)||Thom Evans (cousin) Max Evans (cousin)|
|Occupation(s)||Professional rugby union player|
|Rugby union career|
Kai Horstmann (born 21 September 1981) is a Zimbabwe born English rugby union player who plays for Exeter Chiefs in the Aviva Premiership. He formerly played for Worcester Warriors and Harlequins and has made over 175 Premiership appearances to date.
Horstmann plays as number eight or flanker, and represented the England Saxons for the Churchill Cup tour of North America in July 2006, receiving Man of the Match twice. He was also a member of the IRB World Sevens Series squad in the 2003–04 season, winning in Hong Kong, Dubai and Twickenham.
He was a member of the 2003–2004 team that won the European Challenge Cup at Harlequins RFC.
Horstmann joined Worcester Warriors from Harlequins in May 2005. He led the team on many occasions and made 173 appearances for the club.
Horstmann was a firm favourite of both the players and supporters and was voted Players' Player-of-the-Year in the 2005–06 and 2006–07 seasons and managed a double in 2008–09 when he was voted both Club Player-of-the-Year and Players Player-of-the-Year.
In May 2012, he signed a two-year contract at Exeter Chiefs. In 2014 he was part of the team that won the LV Cup and was rewarded man of the match in the final against Northampton Saints. In 2017, he was part of the team that won the Aviva Premiership at Twickenham. At the end of the 2016–17 season Horstmann was presented with 'Club Man of the Year' at the End of Season Awards Dinner.
In the autumn of 2017 Horstmann launched a new training company, Team Kai, teaching leadership and teamwork skills and strategies based on his experiences operating in high performing teamwork environments during his rugby career. www.teamkai.co.uk
- "Aviva Premiership Rugby - Worcester Warriors". web page. Premier Rugby. Archived from the original on 7 February 2012. Retrieved 26 September 2011.
- "Hodgson to captain England Saxons in Barclays Churchill Cup opener". RFU. Archived from the original on 30 June 2013. Retrieved 31 May 2006.
- "Exeter sign Worcester back-row forward Kai Horstmann". BBC Sport. 3 May 2012. Retrieved 27 May 2012.
- "Premiership final: Wasps 20-23 Exeter Chiefs (aet)". BBC. 27 May 2017. Retrieved 24 September 2018.