Ko Thrason (Greek: Θράσων), i whakamāoritia hei Thrason, he kingi Indo-Greek i Central me Western Punjab, kaore i mohiotia tae noa ki te 1982 te kitenga o tetahi o ana moni na R. C. Senior i roto i te taonga Surana. Ko te moni kei roto i te ahua rite ki a Menander I, he rite tonu te ahua o Athena, me te tohatoha i tetahi o nga tohu a Menander. I runga i te moni, ko te taitara o Thrason ko Basileus Megas ("Kingi Nui"), he taitara i kaha ai a Eucratides te Nui ki te tango i mua i a ia, ana ko te ahua o te tamaiti o Thrason, ko tana moni kotahi e whakaatu ana i te iti me te kore nui.
Ko Thrason