Abstract: A mop head securement device includes a shank adapted for receipt of a mop handle. An upper jaw projects outwardly from the shank and a lower jaw member is pivotally connected to the first end of the upper jaw member. An opposite end of the lower jaw defines a lower latch member. A lever arm has a first portion depending from the upper jaw member toward the lower jaw member, and a second portion extending upwardly away from the lower jaw member. The first portion of the lever arm defines an upper latch member adapted for selective engagement with the lower latch member of the lower jaw. The lever arm is manually movable between a latched position, where the upper latch member is positioned to engage the lower latch member, and an unlatched position. The lower jaw member is movable between: (i) a closed, mop head retaining position; and, (ii) an open position wherein the upper and lower latch members are disengaged and the lower jaw member is pivoted away from the upper jaw member.