The Burmese peacock softshell turtle (Nilssonia formosa) is a species of softshell turtle in the Trionychidae family.

It is one of five species in the genus Nilssonia.

[4] The Burmese peacock softshell is found in Myanmar and possibly Thailand.

[1] Also reported to be found in Karbi Anglong district of Assam.

Nuclear data analyses of a Nilssonia formosa caught near Shuangbai, Yunnan, China by researchers in 2012 suggests the species crossed the watershed between the Salween and Mekong Rivers.