A subsea wet-mateable fiber optical connector, comprising: - a first connector part including an alignment assembly and a first fiber ferrule mounted to a ferrule carrier of the alignment assembly, - a second connector part comprising a second fiber ferrule mounted to a second ferrule carrier of the second connector part, wherein one of the first and second connector parts comprises a plug part and the other of the first and second connector parts comprises a receptacle part; wherein the alignment assembly is for aligning the first fiber ferrule of the first connector part with the second fiber ferrule of the second connector part during subsea mating of the first connector part with the second connector part, wherein the alignment assembly comprises: - the ferrule carrier to which the first fiber ferrule is mounted; - a support structure by means of which the ferrule carrier is mounted to the first connector part, wherein the first fiber ferrule further comprises an alignment member for providing fine alignment between the first fiber ferrule and the second fiber ferrule, characterized in that the support structure is configured to allow a movement of the ferrule carrier relative to the first connector part in at least a lateral direction that is substantially perpendicular to an engagement direction of the first fiber ferrule with the second fiber ferrule; and in that the alignment assembly further comprises a first guiding structure that is mounted to or forms part of the ferrule carrier, wherein the first guiding structure is configured to mechanically interact with a complementary second guiding structure that is provided in the second connector part, the interaction being such that during mating of the first connector part with the second connector part, the ferrule carrier is moved on the support structure into alignment with a second ferrule carrier carrying the second fiber ferrule of the second connector part; wherein the support structure comprises a guide along which the ferrule carrier is movable in the engagement direction, wherein a clearance is provided between the guide and the ferrule carrier to allow the movement of the ferrule carrier in at least the lateral direction relative to the first connector part; wherein the ferrule carrier is urged by a spring into a first position in which the ferrule carrier has a predetermined alignment with respect to the first connector part, and is movable during mating against the spring force into a second position in which the alignment of the ferrule carrier with respect to the first connector part is released to allow said movement in at least the lateral direction. - a first connector part including an alignment assembly and a first fiber ferrule mounted to a ferrule carrier of the alignment assembly, - a second connector part comprising a second fiber ferrule mounted to a second ferrule carrier of the second connector part, wherein one of the first and second connector parts comprises a plug part and the other of the first and second connector parts comprises a receptacle part; wherein the alignment assembly is for aligning the first fiber ferrule of the first connector part with the second fiber ferrule of the second connector part during subsea mating of the first connector part with the second connector part, wherein the alignment assembly comprises: - the ferrule carrier to which the first fiber ferrule is mounted; - a support structure by means of which the ferrule carrier is mounted to the first connector part, - the ferrule carrier to which the first fiber ferrule is mounted; - a support structure by means of which the ferrule carrier is mounted to the first connector part,