Martirosyan (Armenian: Մարտիրոսյան) or variants Mardirosian and Mardirossian in Western Armenian is an Armenian surname. It means "son of Martiros" (a martyr in Armenian).
Notable people with the surname include:
Amasi Martirosyan (born 1897), Armenian film directorArmen Martirosyan (athlete) (born 1969), Armenian triple jumperArmen Martirosyan (politician), ambassador to the United Nations for ArmeniaArmen Martirosyan (musician) (born 1963), artistic director and conductor of the Armenian Jazz BandSimon Martirosyan (born 1997), Armenian weightlifterTigran Gevorg Martirosyan (born 1988), Armenian weightlifter who competes in the 69 kg categoryTigran Vardan Martirosyan (born 1983), Armenian weightlifter who competes in the 85 kg categoryTigran Martirosyan (tennis) (born 1983), Armenian tennis playerVanes Martirosyan (born 1986), Armenian-American professional boxer