Gorman has been married to Sarah Beard, a schoolteacher, since 17 July 2004. Beard gave birth to their first child, son Max Hugh Gorman, in Cardiff in 2006, whilst the first series of Torchwood was in production. The couple's second child, daughter Nell Gorman, was born on 25 January 2009. Rosa Gorman, the couple's third child, followed in September 2014.