Manvydas or Monwid (Russian: Монтивид; died in 1348?) was the eldest son of Gediminas, Grand Duke of Lithuania, and inherited Kernavė and Slonim after his father's death in 1341. Nothing else is known about his life. Matthias of Neuenburg mentioned that two sons of Gediminas perished in the Battle of Strėva in February 1348. One was Narimantas and the other is believed to be Manvydas.
- Jonas Zinkus; et al., eds. (1986). "Manvydas". Tarybų Lietuvos enciklopedija (in Lithuanian). II. Vilnius, Lithuania: Vyriausioji enciklopedijų redakcija. p. 688.
- Tęgowski, Jan (1999). Pierwsze pokolenia Giedyminowiczów (in Polish). Poznań-Wrocław: Wydawnictwo Historyczne. pp. 244–245. ISBN 8391356310.