Nearly 1,200 possible forced marriage cases were flagged up to a specialist service last year, figures show.
Of the 1,196 reports handled by the government's Forced Marriage Unit (FMU), more than a quarter involved victims below the age of 18, while one in five related to male victims.
The total number of cases registered in 2017 was down by 19% on the previous year, but officials said the fall did not represent a decrease in prevalence of forced marriage in the UK.
Forcing someone to marry against their will is a criminal offence that carries a maximum sentence of seven years. A forced marriage is defined as one in which one or both spouses do not consent to the union, and violence, threats or any other form of coercion are involved.