The tombstone of King Taejong Muyeol in Gyeongju is the tombstone of King Taejong Muyeol, the 29th king of Silla, which was built in the mid 7th century in Seorak-dong, Gyeongju, Gyeongsangbuk-do. It is also abbreviated as the Royal Tomb of King Muyeol.

The stele, which was erected during the Unified Silla Period, was shaped like a turtle, and the headstone on the stele was carved with a dragon. The tombstone of King Taejong Muyeol was the first example of this style.

On December 20, 1962, it was designated as National Treasure No. 25 of the Republic of Korea.