Raffi or by his real name Hakob Melik Hakobyan, is the most well known Armenian writers, and considered one of the best. He began the "zartonk" years (Resistance) of the Armenians in the 19th century. he has a lot of well known books such as Tavit Peg(the romanticized version of an Armenian hero who battled Turks and Russians in the 18th century) and the Fool (the most well known book in Armenia and the diaspora).
Siamanto poet who died in the genocide, he wrote about hope, freedom and opression.
Krikor Zohrab, Killed in the genocide, notable Armenian writer and politician/lawyer, member of the Ottoman parliament, he was supposedly the friend of Talat Pasha, there is the mail he sent him, before he was killed. He was trying to stop the atrocities of the Ottoman Army.
Daniel Varujan, Killed during the genocide, Armenian poet, established the Mehean group aimed to start an Armenian literacy and artistic renaissance.
Ruben Cilingiri=yan, the doctor writer and poet, died in the genocide
Khachatur Malumian, died in the genocide, Member of ARF, newspaper editor, he joined with the rest of the ARF, the young Turks revolt against the sultan, he is known for saying "Its impossible! Talaat probably doesnt know about it" when people brought up the massacre of Armenians, as he was loyal to him.
Just google Deportation of Armenian intellectuals on 24 April 1915, you will find a pretty long list.
Aram Manukyan, founder of the first republic of Armenia, organised the defense of Van.
Armen Karo, 1895 Zeitun resistance, mastermind of the occupation of Bank ottoman, involved in the defense of armenians during the Armenian-Tatar massacres.
Soghomon tehlirian, he assassinated talaat Pasha, he is another well known hero among armenians
Papkenn Siuni or Bedros Parian, lost his parents in the Hamidian massacres, he died during the occupation of Bank ottoman.
Aram, Yerganian, Misak Torlakian, Arshavir Shirakian, Aram , Yerganian, Stpean Dzaghigan, al part of Operation Nemesis.
Khrimian Hayrik, or Mgrditch Khrimyan, who tried securing the Armenian population but failed
Hovhannes toumanyan, prominent writer, Armenian childrens books and well known drama and romantic novels, has done a lot of political activism, he created the committee for support of wat victims to help armenian genocide refugees
There are 100's of others as well, but I'm tired now so I hope this is enough