A dock mountable floatation mat storage assembly includes a first mount and a second mount each attached to dock. Each of the first and second mounts includes a base that has an inward portion, an outward portion and a central portion positioned between the inward and outward portions. The inward portion has an aperture extending therethrough. A riser has a top end and a bottom end. The bottom end is attached to the outward portion of the base and extends upwardly away therefrom. A fastener extends through the aperture and through the dock such that the fastener releasably secures the base to the dock. A spindle is positioned on and extends between the top ends of the first and second mounts. The spindle is rotatable relative to the first and second mounts and engages a floating mat such that the floating mat is rolled upon and storable on the spindle.