Stephen O'Donnell, born on 11 May 1992 (age 33), is a Scotland right-back with a Celtic footnote rather than a Celtic career. He spent time in the club’s youth system before making his senior breakthrough elsewhere, which is usually how these things go when the pathway narrows early.
Partick Thistle gave him that senior platform. His best league return came there in 2014–2015, when he scored five goals in 34 appearances, a decent output for a full-back and enough to mark him out as more than a mere touchline shuttler. Spells at Luton Town and Kilmarnock followed before he moved on to Motherwell.
At Motherwell, O'Donnell has remained a regular first-team presence rather than a name kept around for depth. Wearing squad number 2, he has made 33 league appearances in 2025–2026, along with six in the League Cup, where he scored once, and two in the Scottish Cup. Across all competitions for Motherwell that season, he has made 41 appearances and scored one goal.
His current market value is around £43,000, according to Transfermarkt. O'Donnell’s career has taken him from Celtic’s youth ranks through Partick Thistle, Luton and Kilmarnock to a settled role at Motherwell, where he is still playing regularly in his thirties.
