Seindon Mibaya (Burmese: စိန်တုံးမိဖုရား; 1840 – 15 May 1905), known by her royal title, Thiri Pobba Yadana Dewi (Pali: Siripubbāratanadevī), was a senior queen consort of King Mindon during the Konbaung dynasty.

She was the eldest daughter of Le-bo U Sai and Duchess of Ahrlarkatpa, the younger sister of Chandra Mata Mahe, Queen of the South Royal Chamber, who was the mother of King Mindon.

She was granted the appanages of Sale and Ta Lok Myo when she became the queen consort.

In 1878, she was imprisoned for failing to provide a list of the gold, silver, and royal gifts given by King Mindon after his deification.

[1] After the passing of King Mindon, to avoid the beset caused by Queen Hsinbyumashin faction in Upper Burma, she took refuge in Moulmein (now Mawlamyine), then British owned Lower Burma.