St John or St. John is a given name and surname. It can be pronounced or sometimes in some places, particularly if it is the first part of a hyphenated family name or a given name. Use of the full stop separator (period) is uncommon in some countries, especially those that use Commonwealth English.
People with the given name
Egerton St John Pettifor Catchpool (1890–1971), English Quaker relief worker
St John Ellis (1964–2005), British Rugby League player
St John Ervine, Irish writer
Oliver St. John Gogarty, Irish doctor, poet, author, and politician
St John Groser, Anglican priest and Christian socialist
St John Hornby (1867–1946), British businessman
St John Horsfall, British motor racing driver
St John O'Neill (1741–1790), Irish MP for Randalstown
Saint-John Perse, pseudonym of Alexis Leger (1887–1975), French poet and diplomat St John Philby (1885–1960), British civil servant and explorer in Arabia Arthur Evelyn St. John Waugh (1903–1966), English writer
Fictional characters with the given name
St. John Allerdyce, real name of Pyro, fictional supervillain
St John Colchester, in the Torchwood audio drama series
St. John Hawke, in the American TV series Airwolf
St. John Quartermaine, in Quartermaine's Terms, the play by Simon Gray
St. John Rivers, clergyman in Charlotte Brontë's Jane Eyre
St. John Talbot, in the film Star Trek V: The Final Frontier
St. John Powell, partner of fictional advertising firm Putnam, Powell and Lowe in American TV series Mad Men James St. John Smythe, alias used by fictional spy James Bond whilst posing as a horse buyer in A View to a Kill St. John Gurney-Clifford, in British TV series Grantchester