Ranfan is a minor character in Dragonball and contestant in the 21st World Martial Arts Tournament.
Ranfan was Namu's first opponent after the preliminaries. Although a capable hand-to-hand fighter, her signature fighting style revolves around her flirtatious nature and parading as a defenseless woman, usually leaving her male opponents stunt before she delivers a decisive blow.
Ranfan even went as far as to strip down to her underwear during her match with Namu, who eventually made the smart move of fighting with his eyes closed and avoiding an embarrassing defeat at her hands.
It is never made clear whether she was killed with the rest of the tournament fighters later in the King Piccolo Saga, but the revival of everyone killed at King Piccolo's command with by Shenron makes the question rather pointless to lose any sleep over.