KATHRYN HAHN LEGALLY CHANGING KIDS' NAMES ... Put Some Hahn on That!!!

Kathryn Hahn and her hubby Ethan Sandler want name changes for their 2 kids ... and it's all about giving Mama her due. According to legal docs, obtained by TMZ, Kathryn and Ethan filed a petition last week in Los Angeles ... looking to add "Hahn" as a second middle name before the last name "Sandler" for both 16-year-old Leonard and 13-year-old Mae.

KATHRYN HAHN LEGALLY CHANGING KIDS' NAMES ... Put Some Hahn on That!!!

Via: TMZ