Ben Johnston (born ) is an Ireland international rugby league footballer who last played as a or for Doncaster in League 1.
He has previously played for the Castleford Tigers in the Super League and the York City Knights in the Championship. Johnston has spent time on loan from York at the Dewsbury Rams in the Championship and spent six seasons with Halifax in the Championship.
Johnston was born in York, Yorkshire, England.
Johnston made his Super League début for the Castleford Tigers against the London Broncos in 2012.
On 17 September 2020 it was reported that he had signed for Doncaster RLFC in the RFL League 1
On 28 September 2025 it was reported that he would leave Doncaster RLFC at the end of the 2025 season
In 2014, Ben was a late call-up to Mark Aston's Ireland national rugby league team's squad for the 2014 European Cup tournament. Ben played in 2 of the 3 games available.
In October and November 2015, he appeared for Ireland again in the following year's European Cup competition.