| Takeshi Yamaguchi 山口 武士 | |
| Fullname: | Takeshi Yamaguchi |
| Birth Date: | 10 June 1979 |
| Birth Place: | Kumamoto, Kumamoto, Japan |
| Position: | Midfielder |
| Youthyears1: | 1995–1997 |
| Youthclubs1: | Ozu High School |
| Years1: | 1998–2001 |
| Clubs1: | Kashima Antlers |
| Caps1: | 0 |
| Goals1: | 0 |
| Years2: | 2000 |
| Clubs2: | →Oita Trinita (loan) |
| Caps2: | 0 |
| Goals2: | 0 |
| Years3: | 2002–2004 |
| Clubs3: | Sony Sendai |
| Caps3: | 58 |
| Goals3: | 3 |
| Years4: | 2005–2009 |
| Clubs4: | Roasso Kumamoto |
| Caps4: | 79 |
| Goals4: | 8 |
| Totalcaps: | 137 |
| Totalgoals: | 11 |
is a former Japanese football player.
Yamaguchi was born in Kumamoto on June 10, 1979. After graduating from high school, he joined J1 League club Kashima Antlers in 1998. However he could not play at all in the match until 2001. Although he also played for J2 League club Oita Trinita in 2000, he could not play at all in the match. In 2002, he moved to Japan Football League (JFL) club Sony Sendai. He played many matches in 3 seasons. In 2005, he moved to his local club Rosso Kumamoto (later Roasso Kumamoto) in Regional Leagues. He played as regular player and the club was promoted to JFL from 2006. In 2007, the club won the 2nd place and was promoted to J2 from 2008. However his opportunity to play decreased from 2008 and retired end of 2009 season.
| Club performance | League | Cup | League Cup | Total | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | Club | League | Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals | |
| Japan | League | Emperor's Cup | J.League Cup | Total | |||||||
| 1998 | Kashima Antlers | J1 League | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 1999 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||
| 2000 | Oita Trinita | J2 League | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 2001 | Kashima Antlers | J1 League | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 2002 | Sony Sendai | Football League | 16 | 3 | 1 | 0 | colspan="2" | - | 17 | 3 | |
| 2003 | 18 | 0 | 0 | 0 | colspan="2" | - | 18 | 0 | |||
| 2004 | 24 | 0 | 0 | 0 | colspan="2" | - | 24 | 0 | |||
| 2005 | Rosso Kumamoto | Regional Leagues | 17 | 4 | 1 | 0 | colspan="2" | - | 18 | 4 | |
| 2006 | Football League | 22 | 0 | 3 | 0 | colspan="2" | - | 25 | 0 | ||
| 2007 | 20 | 2 | 0 | 0 | colspan="2" | - | 20 | 2 | |||
| 2008 | Roasso Kumamoto | J2 League | 18 | 1 | 0 | 0 | colspan="2" | - | 18 | 1 | |
| 2009 | 2 | 1 | 0 | 0 | colspan="2" | - | 2 | 1 | |||
| Total | 137 | 11 | 5 | 0 | 0 | 0 | 142 | 11 | |||