Jonjo Shelvey was on the 27th of February 1992 in Romford, England. At youth levels he played for Arsenal, West Ham United and then he moved to Charlton Athletic in 2007. He made his debut for the club in April 2008 against Barnsley in which he became the club's youngest ever player at the age of 16 years and 59 days. He also became Charlton's youngest ever goal scorer 54 days before his 17th birthday. He has been known for scoring from distance. He played 42 matches for the club scoring seven goals. Jonjo Shelvey signed for Swansea City in 2013 where he teamed up with the likes of Nathan Dyer, Jose Canas and Wayne Routledge in the midfield.
In May 2010 he signed for Liverpool for a fee of £1.7 million. He made his debut in the League Cup shock loss to Northampton Town. He joined Blackpool on loan for six months. He helped reach the play-offs but they did not manage to get promoted. He played 10 league matches scoring six goals for the club. On the 10th of July 2012 he signed a new long term contract with Liverpool. Shelvey sigend for Welsh club Swansea City for £5 million. He scored his first goal for the club on 16 September 2013, in a 2–2 draw with former club Liverpool.
Shelvey played for England U-16, U-17, U019 and U-21 levels. Shelvey is eligible to play for Scotland and the Republic of Ireland.