John Liddell may refer to:
Sir John Liddell (Royal Navy officer) (died 1868), Scottish doctor and Director-General of the Medical Department of the British Royal Navy John Liddell (1879–1928), British boxer better known as Jack Palmer John Liddell (footballer) (1933–1999), Scottish footballer John Aidan Liddell (1888–1915), English pilot and recipient of the Victoria Cross John Hellyer Liddell, (1899–1984), Chairman of the Shanghai Municipal Council St. John Richardson Liddell (1815–1870), Louisiana planter and Confederate general John Liddell (architect) (1831–1922), Scottish architect Johnny Liddell (footballer, born 1915) (1915–1986), Scottish footballer