Master Trust Bank of Japan
| Founded | 2000 | 
|---|---|
| Headquarters | , Japan | 
| Key people | Kaoru Wachi (president) | 
| JPY 717 million (2016) | |
| AUM | JPY 371 trillion (2016) | 
| Total assets | JPY 6,217.9 billion (2016) | 
| Total equity | JPY 21.8 billion (2016) | 
| Owner | Mitsubishi UFJ Trust and Banking Corporation (46.5%) Nippon Life Insurance Company (33.5%) Meiji Yasuda Life Insurance Company (10.0%) Norinchukin Trust & Banking Co. (10.0%) | 
| Parent | Mitsubishi UFJ Financial Group | 
| Website | mastertrust | 
The Master Trust Bank of Japan, Ltd. (日本マスタートラスト信託銀行株式会社, Nippon Masutā Torasuto Shintaku Ginkō Kabushiki-gaisha) is a trust bank in Japan. It was founded in 2000 and claims to be the first trust bank in Japan to be exclusively engaged in asset administration business.
The company's shareholders are Mitsubishi UFJ Trust and Banking Corporation (46.5%), Nippon Life Insurance (33.5%), Meiji Yasuda Life Insurance (10%) and Norinchukin Trust & Banking Co. (10%). Master Trust Bank is treated as a consolidated subsidiary of Mitsubishi UFJ Trust and Banking, and is by extension part of the Mitsubishi UFJ Financial Group.
It is one of the three main master trust service providers in Japan, alongside Trust & Custody Services Bank (affiliated with Mizuho) and Japan Trustee Services Bank (affiliated with SMFG).