| Hajime Kiso | |
| Birth Date: | 7 November 1978 |
| Birth Place: | Osaka, Japan |
| Weight: | 105kg (231lb) |
| University: | Ritsumeikan University |
| Ru Currentteam: | NTT Communications Shining Arcs |
| Ru Position: | Number 8 |
| Youthyears1: | |
| Ru Clubyears: | 2001 - 2009 2010 - |
| Ru Proclubs: | Yamaha Júbilo NTT Communications Shining Arcs |
| Super14years: | |
| Ru Nationalyears: | 2001-2008 |
| Ru Nationalteam: | Japan |
| Ru Nationalcaps: | 32 |
| Ru Nationalpoints: | (0) |
| Ru Ntupdate: | 1 October 2009 |
| Repsevensyears1: | |
(born 7 November 1978)[1] is a Japanese rugby union player, he plays Number 8.
He played for Yamaha Jubilo, from 2001/02 to 2008/09. He plays currently for NTT Communications Shining Arcs.
He had 32 caps for Japan national rugby union team, from 2001 to 2008, without scoring. He played six games at the 2003 and 2007 World Cups.