Peter I of Gruyères

Peter I of Gruyères (c. 1162 – after 1200) was a younger son of Count Rudolf I and Agnes of Glâne. He first appears as count in an 1197 charter beside his brother Rudolf II, renouncing rights in favour of Hauterive Abbey with the consent of their mother Agnes.

A charter of 1200 again names both brothers as counts, when they were forced to surrender Riaz and Albeuve to the bishopric of Lausanne. Peter died without issue, and the county passed to Rudolf II.