Demirchyan or Demirchian or Demirjian (Armenian: Դեմիրճյան, Western Armenian Տէմիրճեան) is an Armenian surname. Notable people with the surname include:

• Derenik Demirchian (1877–1956), Georgian-born Armenian poet, writer, translator and playwright
• Hovhannes Demirchyan (born 1975), Armenian footballer
• Karen Demirchyan (1932–1999), Soviet Armenian communist politician
• Stepan Demirchyan (born 1959), Armenian politician

• Eddie Demirjian, Lebanese Armenian politician
• Hovig Demirjian (born 1989), Cypriot Armenian singer, also known by the mononym Hovig
• Karoun Demirjian (born 1981), American Armenian multimedia international journalist and freelance reporter
• Adam Demirjian, American singer and multi-instrumentalist. Best known for leading the band The Brave Little Abacus

This page lists people with the surname Demirchyan.
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