| Jonas Troest | |
| Birth Date: | 4 March 1985 |
| Birth Place: | Copenhagen, Denmark[1] |
| Height: | 1.85 m |
| Position: | Centre-back |
| Years1: | 2002–2004 |
| Clubs1: | B.93 |
| Caps1: | 35 |
| Goals1: | 1 |
| Years2: | 2004–2006 |
| Clubs2: | Silkeborg |
| Caps2: | 47 |
| Goals2: | 0 |
| Years3: | 2006–2007 |
| Clubs3: | Hannover 96 |
| Caps3: | 8 |
| Goals3: | 0 |
| Years4: | 2007–2010 |
| Clubs4: | OB |
| Caps4: | 67 |
| Goals4: | 1 |
| Years5: | 2010 |
| Clubs5: | Konyaspor |
| Caps5: | 1 |
| Goals5: | 0 |
| Years6: | 2010–2011 |
| Clubs6: | OB |
| Caps6: | 2 |
| Goals6: | 0 |
| Years7: | 2011 |
| Clubs7: | → SønderjyskE (loan) |
| Caps7: | 17 |
| Goals7: | 0 |
| Years8: | 2012–2014 |
| Clubs8: | SønderjyskE |
| Caps8: | 3 |
| Goals8: | 0 |
| Years9: | 2014 |
| Clubs9: | → AB (loan) |
| Caps9: | 11 |
| Goals9: | 0 |
| Years10: | 2014–2016 |
| Clubs10: | AB |
| Caps10: | 0 |
| Goals10: | 0 |
| Years11: | 2020–2022 |
| Clubs11: | AB Taarnby |
| Nationalteam1: | Denmark U-16 |
| Nationalyears1: | 2000–2001 |
| Nationalcaps1: | 5 |
| Nationalgoals1: | 0 |
| Nationalteam2: | Denmark U-17 |
| Nationalyears2: | 2001–2002 |
| Nationalcaps2: | 16 |
| Nationalgoals2: | 0 |
| Nationalyears3: | 2004–2006 |
| Nationalteam3: | Denmark U-21 |
| Nationalcaps3: | 25 |
| Nationalgoals3: | 0 |
Jonas Troest (born 4 March 1985) is a retired Danish professional footballer, who played as a centre-back. He played 25 matches for the Denmark under-21 national team. He is the older brother of footballer Magnus Troest.
Troest started his senior career in 2002, with B 93 in the secondary Danish 1st Division league. In 2004, he moved to Silkeborg IF in the top-flight Danish Superliga championship. While at Silkeborg, he made his debut for the Denmark under-21 national team in September 2004. He moved abroad to play for Bundesliga club Hannover 96 in January 2006. In May 2006, he was selected to compete for the Denmark under-21 national squad at the 2006 European Under-21 Championship, where he played in all Denmark's three matches.
He signed with Süper Lig club Konyaspor in summer 2010.
OB