No, James Martin is not married. James does not have a wife.
He is in a relationship with his long-time girlfriend, Louise Davies
James and Louise met on Celebrity Who Wants to be a Millionaire. They have been dating since their meeting on the show in 2011.
Louise Davies is a television producer. Not much information is available on Louise. she likes o keep her life private.
The pair do not make other relationship life public nor open to the spotlight. They live their life on the low.