Jonathan "Jon" Mould (born 4 April 1991) is a Welsh racing cyclist from Newport. Mould is a member of British Cycling's Olympic Academy Programme which he joined in 2010.

Mould started bike racing at the age of 14 with Newport Velo Cycling Club, and joined the British Cycling Olympic Development Programme in 2009. He was a Commonwealth Games Athlete representing Wales at the Delhi 2010 Games, and rode for the An Post–Sean Kelly team in 2012. He joined Team UK Youth for 2013. After Team UK Youth folded at the end of 2013, he signed with the NFTO team for 2014. After one season with NFTO Mould was announced as part of the inaugural squad for the ONE Pro Cycling team for the 2015 season.

Mould represented Wales at the Commonwealth Games in Glasgow, 2014.

In June 2016 Mould took his fourth Tour Series victory of the season in Durham: the win was also his third consecutive Tour Series win and the ninth of Mould's career, breaking the record of eight wins held by team-mate Ed Clancy.

On 14 April 2018 Mould secured a silver medal for Wales in the Road Race at the 2018 Commonwealth Games held on the Gold Coast, Australia.