Game Of Thrones stars Kit Harington, Rose Leslie tie the knot

British actors Kit Harington and Rose Leslie, who met on the set of hit series Game of Thrones, have married in Scotland at the bride's ancestral castle.

Kit Harington and Rose Leslie at Rayne Church. Source: AAP

Former Game of Thrones co-stars Kit Harington and Rose Leslie have got married with a church service and a celebration at the bride's ancestral castle in Scotland.

The couple and guests arrived for the afternoon service on Saturday at Rayne Church, close to the 900-year-old Wardhill Castle in northeast Scotland, which is owned by Leslie's family.

Actors Rose Leslie and Kit Harington, who met on the Game of Thrones set, have married in Scotland. (AAP)

Harington, wearing a morning suit, and Leslie, in a flowing ivory gown and veil, smiled at members of the public who had gathered outside the church.

Guests included the pair's Game of Thrones co-stars Peter Dinklage, Maisie Williams, Sophie Turner and Emilia Clarke.

Later the newlyweds were showered with rose petal confetti as they left the church and drove off in a Land Rover festooned with "Just Married" signs to a reception on the castle grounds.

Actresses Sophie Turner (far left), Maisie Williams and Emilia Clarke arrive at the church. Source: AAP

Harington and Leslie, who are both 31, met in 2012 on the set of the HBO fantasy series, where they played a couple as the characters Jon Snow and Ygritte.

Leslie left the cast in 2014 and currently stars in US legal drama The Good Fight.

The couple announced their engagement with a notice in the Times of London newspaper in September.

The bride's father, Sebastian Leslie, said on Saturday he was "absolutely thrilled" about the wedding.

"It's an absolutely lovely day for us," he said.

Kit Harington and Rose Leslie get covered in confetti after their wedding. Source: AAP