Wamena wani babban birni ne na Jayawijaya Regency na Indonesia . Babban birni ne a cikin tsaunukan Papua na Indonesiya, a cikin kwarin Baliem kuma yana da yawan jama'a kimanin mutane 31,724 a ƙidayar shekara ta 2010 da 64,967 a ƙidayar shekara ta 2020. Wamena ita ce cibiyar birane na yankunan karkara wanda ke da yawan jama'a mafi girma a yammacin Papua, tare da mutane sama da guda 300,000 da ke zaune a kwarin Baliem da kewayenta. Waɗannan mutanen suna cikin wasu kabilun da ke da alaƙa, waɗanda aka fi sani da su sune Dani, Lani da Yali . Garin kuma gida ne ga ƙungiyar ƙwallon ƙafa ta Persiwa Wamena, waɗanda ke wasa a gasar firimiya ta Indonesia . Dangane da duniyar waje, gano kwarin Baliem, inda Wamena yake, da kasancewar ba a zata ba da yawan masu aikin gona da Richard Archbold ya yi balaguro na uku zuwa New Guinea a shekara ta 1938. A ranar 21 ga Yuni wani jirgin leken asirin jirgin sama zuwa kudu daga Hollandia (yanzu Jayapura ) ya gano abin da balaguron ya kira 'Grand Valley'.