Sri Sulalai (Thai: ศรีสุลาลัย; RTGS: Si Sulalai; 1770–1837), née Riam (Thai: เรียม), was a royal consort of Phra Phutthaloetla Naphalai, Rama II of Siam and was the mother of Nangklao, Rama III.

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She was of Persian descent^[1] and her family was Muslim from the Southern part of the Kingdom. She married Prince Isarasundhorn as the second concubine and gave birth to Prince Thap (later Prince Chetsadabodin) in 1787.

In 1809, Prince Isarasundhorn was crowned as King Buddha Loetla Nabhalai. Chao Chom Manda Riam then moved to the Royal Grand Palace and presided over the royal kitchen. Prince Jessadabodindra was trusted by the king to handle various state affairs. In 1824, King Buddha Loetla Nabhalai died. According to the tradition, the throne would go to Prince Mongkut, the son of Queen Sri Suriyendra. However, the nobility instead enthroned Prince Jessadabodindra because he had served the king in Kromma Tha (Ministry of Trade and Foreign Affairs) for years and was proved to be competent to rule.

As her son was crowned, Noble consort Riam was raised to Princess Mother Sri Sulalai, thus a member of the royalty. Her son also constructed a mosque in her honor.^[1] She died in 1837.

• 27 January 1771 - Rama I period : Riam
• Reign of Rama I - 8 September 1809 : Lady Riam
  • Mom Riam
• 8 September 1809 - 13 September 1824 : Noble Consort Riam
  • Chao Chom Manda Riam
• Her Royal Highness Princess Sri Sulalai, The Princess Mother
  • 13 September 1824 - 17 October 1837 : Krom Phra Sri Sulalai
  • Reign of Rama IV - Rama VI : Krom Somdet Phra Sri Sulalai
  • Reign of Rama VI : Somdet Phra Sri Sulalai