Cognomen 信之 (信之 
) , all around the world, is a rare surname. The family name 信之 is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 信之 is the forename as well as the last name.
| 吉原 信之 Japanese businessperson (1916-2007), JP (b. 1916) |
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