Yurika

is a Konohagakure kunoichi in Konoha Cryptanalysis Squad.

Kazekage Rescue Arc
She decodes the message from Sunagakure reporting Gaara's kidnapping by Akatsuki. In the manga, Yurika told Tsunade herself about Gaara's kidnapping, while in the anime, she handed her the message to read it.

Trivia
It is likely her name is a reference to [{Wikipedia:Eureka (word)|"eureka"]], a common expression used when discovering things.