| Raja Biru | |
|---|---|
| Monarch of Patani | |
| Reign | 1616–1624 |
| Predecessor | Raja Hijau |
| Successor | Raja Ungu |
| Born | c. 1566 |
| Died | 1624 |
| Father | Sultan Mansur Shah |
Raja Biru or Ratu Biru (Thai: รายาบีรู; Malay: راتو بيرو; c. 1566–1624) ruled the Sultanate of Patani (1616–1624), succeeding her sister Raja Hijau. She was the second of three daughters of Sultan Mansur Shah who ruled the country. She was succeeded by her sister Raja Ungu. In Malay, her name means "Blue" or "Blue Queen."