An optical ferrule configured to move along a mating direction to mate with a mating optical ferrule. The optical ferrule includes an attachment portion for receiving and securing one or more optical waveguides. First and second engagement portions are formed integrally with the optical ferrule and spaced apart from each other along the mating direction. First and second engagement portions are formed integrally with the mating optical ferrule and spaced apart from each other along the mating direction. When the optical ferrule mates with the mating optical ferrule, the first and second engagement portions of the optical ferrule engage the respective second and first engagement portions of the mating optical ferrule. The engagement of the engagement portions of the optical ferrules prevents each of the optical ferules from moving relative to the other optical ferrule along at least mutually orthogonal first and second directions orthogonal to the mating direction.