John Robert Coghlan (born 19 September 1946) is an English musician, best known as the original drummer of the rock band Status Quo. The son of a Glasgow-born father and a London-born half-French mother, Coghlan grew up in Dulwich and was educated at Kingsdale Comprehensive School.

He left school at 15 to begin an apprenticeship as a mechanic. He attended drumming tuition under Lloyd Ryan, who also taught Phil Collins the drum rudiments. John Coghlan joined Status Quo, then called The Scorpions (latterly The Spectres), in early 1962 after a meeting with bassist Alan Lancaster, guitarist Francis Rossi and keyboard player Jess Jaworski.