John Michael Whelan (born 1960) is the General Secretary of the British trade union ASLEF. He is the 18th General Secretary of ASLEF.
Whelan was born in Paddington to Irish parents and grew up in north-west London. His mother worked in a sweet shop at Euston station and his father was a bricklayer. Whelan credited his father with politicising him, although both his parents had left-wing views: his father was a member of the Socialist Workers Party whilst he described his mother's beliefs as "hard Labour". He passed his eleven-plus and attended London Oratory School: he planned to attend university after leaving school, however he entered employment instead after his father suffered injuries from a fall from some scaffolding and was unable to continue working.
He began working in the rail industry in 1984, becoming a train driver. Previously he had been a bank clerk.
He was elected General Secretary of ASLEF on 11 October 2011, when he received 3683 votes compared to 3458 for Simon Weller. Previously he had been Midlands District Organiser (ASLEF District 6) for the union. In the first ballot on 19 September 2011 he received 3284 votes, against 3115 for Simon Weller. He became General Secretary on 5 December 2011.
He is also Editor of Aslef Journal (a nominal position for the General Secretary), published by TU ink.
He supports Chelsea football team.
He is married to Lorraine Phelan MBE, the Chief Biomedical Scientist for special haematology at St Mary's Hospital, London. They live in the London Borough of Brent and have two boys including a son born in 1995.