Leuthard may refer to:
Doris Leuthard (born 1963), president of Switzerland in 2017 Thomas Leuthard (born 1971), street photographer Leuthard I of Paris (d. 813/816), count of Paris and Fezensac Leuthard II of Paris (c.806–858/869), seventh Count of Paris Leuthari II (fl. c. 643), Duke of Alamannia
Leutard of Vertus (d. c. 1000), French peasant denounced as a heretic