A phone grip floss dispenser apparatus for securing a cellphone and conveniently dispensing dental floss includes a base. An adhesive is coupled to the base and is configured to secure the base to a cellphone. An expandable grip body has a foldable lower portion and upper portion to move the grip body between a collapsed position and an extended position. A cap bottom is coupled to the upper portion and has a threaded outer lip having a notch. A floss spool is coupled to the cap bottom and has a spool body and a length of dental floss windingly coupled around the spool body. A cap top is coupled to the cap bottom and has an inner threading selectively engageable with the outer lip of the cap bottom to secure the floss spool. The dental floss is dispensed through the notch.