James Henry Donaldson (born 14 September 1991) is an English professional rugby league footballer who plays as a loose forward and second-row for Bradford Bulls in the RFL Championship.

Donaldson suffered relegation from the Super League with Hull Kingston Rovers in the 2016 season, due to losing the Million Pound Game by the Salford Red Devils.

[5][6] Donaldson made his long-awaited return from his ACL kneeinjury on 15 March 2018, in a Super League fixture against the Huddersfield Giants, Hull Kingston Rovers ran-out 6–38 victors, with James featuring from off the interchange bench.

[7] Donaldson appeared on only one occasion for the York City Knights on 11 March 2018, four-days later he made his long-awaited return to the Hull Kingston Rovers' fold, following his long-term ACL knee injury that he sustained the season prior.

Donaldson was subsequently given a chance to "prove his worth" to new Leeds Rhinos Head Coach David Furner, in all hopes of earning a contract at the club on a permanent basis.

Donaldson made his Leeds Rhinos' début on 2 February 2019, in a 26–6 round 1 Super League defeat against the Warrington Wolves at the Halliwell Jones Stadium.