Regan Jon Griffiths (born 1 May 2000) is an English footballer who plays as a midfielder for National League club Altrincham.

[2] In February 2020, he joined Kidsgrove Athletic[3] on a month-long loan before having a similar spell at Witton Albion in October that year.

[4] The following month, on 10 November 2020, Griffiths made his Crewe debut in an EFL Trophy group game against Shrewsbury Town.

[6] On 31 March 2021, Griffiths joined Notts County on loan to the end of their National League season,[7] making his debut in a 1–0 win over Wrexham on 2 April 2021,[8] and ultimately making 12 appearances as County reached, but lost, a National League play-off semi-final on 12 June 2021.

[12] On 1 September 2023, Griffiths and team-mate Billy Sass-Davies joined National League side Boreham Wood on loan deals running to 31 January 2024.