The Tsukahara can refer to a specific vault and a family of vaults in artistic gymnastics.
A Tsukahara vault consists of a half turn off the springboard onto the vault table, then a push backwards, usually into a back salto or layout.
[1] In Japanese, this technique is known as a "Moonsault".
[2] Any vault that has a handspring with 1/4 - 1/2 turn onto the vault table into a salto backwards is classified as a Tsukahara vault.
Some variations on the Tsukahara vaults include: