|Full name||Jens Janse|
|Date of birth||1 July 1986|
|Place of birth||Venlo, Netherlands|
|Height||1.85 m (6 ft 1 in)|
|Playing position||Right back|
|* Senior club appearances and goals counted for the domestic league only and correct as of 15:58, 1 April 2017 (UTC).
‡ National team caps and goals correct as of 19:05, 10 October 2009 (UTC)
Jens Janse, (born 1 July 1986) is a Dutch footballer who plays as a right defender for Leyton Orient. He formerly played for Willem II (where a started his professional football career), NAC Breda, Córdoba CF, Dinamo Tbilisi and Ternana.
Born in Venlo, Janse began playing football with amateur team MVC '19 from Maasbree, the town where he grew up. When he became older, he began playing for the youth teams of VVV-Venlo, the biggest club in the city where he was born. He was soon spotted by PSV Eindhoven. In PSV's youth, he played as a right winger, but after taking the advice of skills- and talent coach Ricardo Moniz, he instead began playing as a right back. After playing great as a right back, PSV wanted to offer him a first team contract, but because of the presence of Kasper Bøgelund, Michael Lamey, André Ooijer and Michael Reiziger, he was advised to play somewhere else. Willem II showed their interest, and Janse decided to play in Tilburg.
Janse was chosen to play for Willem II's first team at the beginning of the 2005–06 season. On 11 January 2006, Janse made his debut under the leadership of coach Kees Zwamborn in the match against Heracles Almelo. The match ended in a 1–2 defeat for the Tricolores. Janse profiled himself by making an assist, and getting a yellow card. In this season, Janse played in 8 more matches.
Despite his good entrance in the Eredivisie for Willem II, it took a long time until he played again. Although, the 2006–07 season was marked as the great breakthrough of Janse. When his biggest competitor, Nuelson Wau, became injured, the road was paved for a fantastic season for Janse. Often he was the only bright spot for the chaos characterized club. Because of his good performances for Willem II, his competitor Wau eventually signed with Roda JC.
On 5 September 2014, Janse signed a contract with Ternana Calcio.