Gegham Ter-Karapetian (Armenian: Գեղամ Տեր-Կարապետեան) (1865-1918), better known by his pen name Msho Gegham (Մշոյ Գեղամ), was a writer and politician in the Ottoman Empire.

Ter-Karapetian was born in 1865 in the village of Kheybian in Bitlis Vilayet, Ottoman Empire.

[1] He was a major writer of Western Armenian provincial literature.

[2][3] He was also a respected journalist and statesman.

[4] Ter-Karapetian served as a deputy in the Ottoman Chamber of Deputies from the Armenian Revolutionary Federation.