| Seindon Mibaya Siripubbāratanadevī | |
| Succession: | Mibaya of Seindon, Sale and Talok |
| Reign: | ? – 1878 |
| Birth Name: | Shin Thet |
| Death Place: | Moulmein, British Burma |
| Consort: | yes |
| Spouse: | Mindon Min |
| Spouse-Type: | Spouse |
| Issue: | None |
| Regnal Name: | Siripubbāratanadevī (Burmese: သီရိပုဗ္ဗာရတနာဒေဝီ) |
| House: | Konbaung |
| Religion: | Theravada Buddhism |
Seindon Mibaya (my|စိန်တုံးမိဖုရား; 1840 – 15 May 1905), known by her royal title, Thiri Pobba Yadana Dewi (pi|Siripubbāratanadevī), was a senior queen consort of King Mindon during the Konbaung dynasty. Being a cousin of King Mindon, she was promoted to a Nanzwe Mibaya[1] and received the appanage of Seindon[2] when he ascended the throne.
Seindon Mibaya was born as Shin Thet in 1840 to parents Le-u Bo U Sai and Arla Kappa Myosa, the sister of King Mindon's mother, Chandra Mata Mahe. She has one younger sibling, Prince Tapal. She is also a cousin of King Mindon. She was granted the appanages of Sale and Ta Lok Myo. She did not bear any issue.
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.[3] 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.[4] There, she established the Yadanabonmyint Monastery (ရတနာဘုံမြင့်ကျောင်း). Later, she joined the Buddhist order of nun in Moulmein before she died on 15 May 1905.[5]