John Francis Meagher (born 17 September 1948 in Melbourne, Australia) is an Australian Racing Hall of Fame Thoroughbred racehorse trainer.

Meagher trained What A Nuisance to a win in the 1985 Melbourne Cup.

Ridden by Pat Hyland and owned by Lloyd Williams the win was particularly memorable for the attendance of Prince Charles and Lady Diana who presented the winning connections with the famous trophy.

Meagher was inducted into the Australian Racing Hall of Fame in 2019.

This Australian horse racing biographical article is a stub.