•
Ali Sina (activist), pseudonym of an Iranian-born Canadian activist, founder of several anti-Islam and anti-Muslim websites •
Elvis Sina (born 1978), Albanian soccer player •
Ibn Sīnā (c. 980 – 1037), also known as Avicenna, Persian physician, philosopher, and scientist •
Jaren Sina (born 1994), Portugal-born American basketball player of Kosovar origin •
Melek Sina Baydur (born 1948), Turkish diplomat and former Ambassador of Turkey •
Sina Ashouri (born 1988), Iranian soccer player •
Sina Siegenthaler (born 2000), Swiss snowboarder •
Sina-Drums, YouTube alias of Sina Doering (born 1999), German drummer and YouTuber •
Than Sina, 21st-century Cambodian politician •
Wynne (rapper), stage name of Sina Wynne Holwerda (born 1997), American rapper ==Companies==