A marine gangway to enable handicapped users to move between floating and fixed landings may include a gangway ramp extending between the floating and fixed landings, and at least one rail carried by the gangway ramp. The marine gangway may further include a drive unit coupled to the at least one rail and movable between the floating and fixed landings, and a handicapped user lift unit carried by the drive unit and pivoting with respect thereto to be level at at least one of the floating and fixed landings. As such, the lift unit may remain level in a loading/unloading position at the floating or fixed landing despite changes in inclination of the gangway ramp, which prevents damage to the lift unit as a result thereof.