An I-beam anchor for removably securing a fall protection member to an I-beam is disclosed. The I-beam anchor comprises a cross-beam, an anchor ring, and first and second brackets. The first bracket is positioned between a first end and center portion of the cross-beam and the second bracket positioned between a second end and center portion of the cross-beam. Each of the brackets comprises an inwardly directed flange spaced above the body of the brackets. At least the first bracket is a movable bracket and is movable along the cross-beam relative to the second bracket. The moveable bracket comprises a protected “quick release” mechanism that allows for the rapid engagement and disengagement of the anchor to the I-beam, in which the quick release mechanism is configured to minimize the chance of accidental or unintentional release.