John MacAlister "Iain" Moffat-Pender (18 August 1894 — 13 October 1961) was a Scottish writer, poet, Gaelic revivalist and international rugby union player.

Born to Scottish parents in Ockham, Surrey, Moffat-Pender grew up in Scotland and was a rugby union forward during his youth, culminating in him being capped for the national team against England in a 1914 Calcutta Cup match at Inverleith.

[1] Moffat-Pender served in France as a Captain with the Seaforth Highlanders in World War I, over the course of which he was wounded three times.

He learned Gaelic through interacting with soldiers from the Isle of Lewis, where he moved after being decommissioned to immerse himself in the language, while also studying at the University of Edinburgh under the tutelage of William J.

The closest he came to being elected was in 1931 when he fell 1,000 votes short of incumbent MP Thomas Ramsay of the National Liberal Party.