Xavier Mignot (born 27 January 1994) is a French professional rugby union player.

[1][2] Mignot, the son of a rugby coach, plays in the Top 14 with Lyon OU and was a member of their 2021–22 Challenge Cup winning side.

He was previously at FC Grenoble from 2014 to 2017.

[3] On a tour of Argentina in 2016, Mignot was capped for France in the first Test, which he started on the wing.

[4] Mignot's younger brother Pierre plays for the France national rugby sevens team.