Iosefo Masikau Baleiwairiki also known as either Iosefo Masikau or Iosefo Masi (born in 1998) is a Fijian professional rugby union footballer who plays for the Fijian Drua in the Super Rugby. Known for repeatedly slicing his way through the opposition defensive line has earned him the nickname "Slice Man". He is a former rugby sevens player, winning a gold medal for Fiji at the 2020 Summer Olympics. He won a gold medal at the 2022 Rugby World Cup Sevens in Cape Town.