|Hwan Nāyaka Jayadeva
|Senapati, Lakan of Tondo and Pailah|
|Reign||c. 900 CE|
|House||Kingdom of Tondo|
Jayadewa or Jayadeva (Sanskrit: जयदेव, Baybayin: ᜇᜒᜌ᜔ᜇᜒᜏ), Gat Dyadewa (full title: Hwan Nāyaka Tuan Jayadewa or Senapati Jayadewa or Admiral Jayadeva), was a possible ruler or minister of the Kingdom of Tondo during its early years (Early classical period Philippines). He had the title of senapati or admiral in Sanskrit.
No records describe his life and works. In the Laguna Copperplate Inscription, he is mentioned as the ruler or minister of Tondo in 900 CE, where he gave a pardon for a debt to a person named Namwaran and his family.
|“||Sa pagkakátaóng itó, si Dayang Angkatán sampû ng kaniyáng kapatíd na nagngangalang Buká (bulaklák), na mga anák ng Kagalang-galang na si Namwarán, ay ginawaran ng isáng kasulatán ng lubós na kapatawarán mulâ sa Punong Pángkalahatán sa Tundún (Tondo) sa pagkatawán ng Punong Kagawad ng Pailáh na si Jayadewa.||”|
"On this occasion, Lady Angkatan, and her brother, Buka, the children of the Honourable Namwaran, were awarded a complete pardon from the Overall Leader [King] of Tundún, represented by the Lord Minister of Pailáh, Jayadewa."
- Laguna Copperplate Inscription (LCI) - the oldest written document in the Philippines
- Senapati - a Sanskrit title and rank for an Admiral or General
- List of sovereign state leaders in the Philippines
- List of Pre-colonial Filipino consorts
- Morrow, Paul (2006-07-14). "The Laguna Copperplate Inscription". Retrieved 2008-02-05.