Wing Commander Donald Roderick MacLaren DSO MC DFC (28 May 1893 – 4 July 1988) was a Canadian World War I flying ace.

After recovering MacLaren, his father and his brother opened a fur trading post at a remote point on the Peace River.

His first air combat was in February 1918, where MacLaren successfully shot down a German fighter 'out of control'.

He was awarded the Military Cross for a sortie on 21 March 1918 in which he helped destroy a railway gun with his bombs, then shot down a balloon and two German LVG two-seaters.

In late October MacLaren, who had escaped injury in combat, broke his leg during a friendly wrestling match with another member of his squadron.

Among others, he probably shot down ace Mieczysław Garsztka on 2 October 1918 (shared with James Leith and Cyril Sawyer).

He served in 46 Squadron RFC/RAF alongside V. M. Yeates, the author of the seminal World War I novel Winged Victory in which Tom Cundall, the main protagonist's flight commander is a Canadian called "Mac".

Also served with Arthur Gould Lee, who authored No Parachute and later achieved the rank of Air Vice Marshal