Javan Sebastian (born 27 September 1994 in Llanelli, Wales) is a Welsh rugby union player who plays for Glasgow Warriors at the Tighthead Prop position. The prop is eligible for Scotland through his father who was born and raised in Edinburgh Sebastian has played for Carmarthen Athletic, Llanelli RFC, and Carmarthen Quins Sebastian has represented Wales at under-16 and under-18 level. He was then signed as part of the Scarlets academy programme and made one competitive appearance for the Scarlets against Sale in the LV Cup.