Peter Ian Ronald MacDonald (born 17 November 1980) is a Scottish professional football coach and a former player who played as a striker.
In the 2006–07 season, MacDonald was sent off during Saints' 2–2 draw with Ross County in Dingwall on 11 November 2006, just thirteen minutes after coming on as a substitute, for a challenge that gave the visitors a last-minute penalty.
Fit again, and as the only player who has remained at the club since relegation seven years ago, he was looking to make an impact at SPL level but it was mid-December before he made a starting appearance in a 1–0 win over St. Mirren.
A contract extension to the end of the 2010–11 season was celebrated with a match winning goal against Hearts in the Scottish Cup at Tynecastle on 11 January.
MacDonald signed for Greenock Morton in July 2011 after a lengthy trial to join his teammate at Saints, Andy Jackson, on the tail of the bank.
[9] On 5 June 2013, it was announced that MacDonald had signed with recently relegated SPL side Dundee with fellow former Morton full-back Willie Dyer.
On the first day of the SPFL Championship, "Peaso" put Dundee ahead against Queen of the South, but they lost the game 4–3 at Palmerston.
MacDonald was proving to be a key player as Dundee pushed for the top of the league, and scored four goals in three games, twice away to Dumbarton, once more against Queen of the South, then in a 2–1 defeat at Livingston where he also missed a penalty.
When Dundee visited Hamilton hoping to reel in the team top of the league, "Peaso" struck with a diving header in the last few minutes after a shot from Martin Boyle had come off the bar to give the Dees a 3–0 win.
Unfortunately this failed to transpire but a role with the Weir funded youth Development presented itself and MacDonald was appointed a coach for the under 17s age group.