Merga may refer to:
38 Boötis, a star in the constellation Boötes also known as Merga Prototheora merga, a species of moth of the family Prototheoridae Pesh merga, term used by Kurds to refer to armed Kurdish fighters Merga Bien (late 1560s – 1603), German woman convicted of witchcraft and killed
Ethiopian name Merga (Amharic: መርጋ) is a male name of Ethiopian origin Deriba Merga (born 1980), Ethiopian long-distance runner and 2009 Boston Marathon winner Imane Merga (born 1988), Ethiopian long-distance runner and cross country world champion