A submarine optical connector (1), comprising: a first support element (11) for supporting a first optical fiber, said first support element including at least one alignment pin (31, 31′), a second support element (12) for supporting a second optical fiber, said second support element including at least one through hole intended to receive respectively said at least one alignment pin to guide the first and second support elements towards a contact position in which the first and second fibers are connected, and sealing means (41, 42, 43) to protect the first and second fibers from the external environment at least when the first and second support elements are in the contact position.