| Kazunori Iio 飯尾 一慶 | |
| Fullname: | Kazunori Iio |
| Birth Date: | 23 February 1982 |
| Birth Place: | Ninohe, Iwate, Japan |
| Position: | Midfielder, Forward |
| Youthyears1: | 1997–1999 |
| Youthclubs1: | Verdy Kawasaki |
| Years1: | 1999–2013 |
| Clubs1: | Tokyo Verdy |
| Caps1: | 276 |
| Goals1: | 30 |
| Years2: | 2002 |
| Clubs2: | →Kawasaki Frontale (loan) |
| Caps2: | 7 |
| Goals2: | 2 |
| Years3: | 2005 |
| Clubs3: | →Kawasaki Frontale (loan) |
| Caps3: | 5 |
| Goals3: | 0 |
| Years4: | 2006 |
| Clubs4: | →Avispa Fukuoka (loan) |
| Caps4: | 17 |
| Goals4: | 4 |
| Years5: | 2014–2015 |
| Clubs5: | Yokohama FC |
| Caps5: | 10 |
| Goals5: | 1 |
| Totalcaps: | 315 |
| Totalgoals: | 37 |
| Nationalyears1: | 2001 |
| Nationalteam1: | Japan U-20 |
| Nationalcaps1: | 3 |
| Nationalgoals1: | 0 |
is a former Japanese football player.
Iio was born in Ninohe on February 23, 1982. He joined Verdy Kawasaki (later Tokyo Verdy) from youth team in 1999. In 2000, he played many matches as forward.
Iio made a name for himself when he scored Verdy's first goal in the final of the 2004 Emperor's Cup. The match ended in a 2-1 victory for Verdy over Júbilo Iwata. Kazuki Hiramoto netted Verdy's second, whilst Norihiro Nishi provided Júbilo's consolation. It was the first time Verdy had won the Emperor's Cup since 1996.
Upon Iio's transfer to Avispa Fukuoka in 2006, he received a relatively high squad number of 34. Despite this, he quickly established himself as a first-choice striker. During the 2006 season, Avispa would usually play with two men up front, with Iio on the left, and Takanori Nunobe to his right.
Iio's first J1 League appearance for Avispa came against FC Tokyo on 19 July 2006, when he came on as an 84th-minute substitute for fellow striker Mitsunori Yabuta. This game was held at the Hakatanomori Football Stadium, and ended in a goalless draw. Iio would not have to wait long for his first Avispa goal however, as just 10 days later, on the 29 July 2006 contest between Gamba Osaka and Avispa, Iio netted a goal in a match that eventually ended in a 2-2 draw.
Following Avispa's relegation, Iio returned to Verdy for the start of the 2007 season. Iio would appear regularly for Verdy in this campaign, occasionally even appearing as a right-winger in Verdy's midfield. He finished the campaign with 19 games, scoring 2 goals.
He moved to Yokohama FC in 2014. However he could hardly play in the match and he left the club end of 2015 season.
Iio has represented Japan U-20 national team, but has yet to be given a full international cap. Iio was selected for the 2001 World Youth Championship, along with his strike partner at Tokyo Verdy, Kazuki Hiramoto. At this tournament, he played all 3 matches.
| Club performance | League | Cup | League Cup | Continental | Total | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | Club | League | Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals | |
| Japan | League | Emperor's Cup | J.League Cup | Asia | Total | ||||||||
| 1999 | Verdy Kawasaki | J1 League | 4 | 0 | 1 | 1 | 2 | 0 | colspan="2" | - | 7 | 1 | |
| 2000 | 26 | 4 | 2 | 0 | 4 | 0 | colspan="2" | - | 32 | 4 | |||
| 2001 | Tokyo Verdy | J1 League | 11 | 0 | 0 | 0 | 1 | 1 | colspan="2" | - | 12 | 1 | |
| 2002 | Kawasaki Frontale | J2 League | 7 | 2 | 0 | 0 | colspan="2" | - | colspan="2" | - | 7 | 2 | |
| 2003 | Tokyo Verdy | J1 League | 13 | 2 | 0 | 0 | 5 | 0 | colspan="2" | - | 18 | 2 | |
| 2004 | 12 | 0 | 5 | 1 | 3 | 0 | colspan="2" | - | 20 | 1 | |||
| 2005 | Kawasaki Frontale | J1 League | 5 | 0 | 0 | 0 | 1 | 0 | colspan="2" | - | 6 | 0 | |
| 2006 | Tokyo Verdy | J2 League | 9 | 1 | 0 | 0 | colspan="2" | - | 2 | 0 | 11 | 1 | |
| 2006 | Avispa Fukuoka | J1 League | 17 | 4 | 1 | 0 | 0 | 0 | colspan="2" | - | 18 | 4 | |
| 2007 | Tokyo Verdy | J2 League | 19 | 2 | 0 | 0 | colspan="2" | - | colspan="2" | - | 19 | 2 | |
| 2008 | J1 League | 26 | 2 | 1 | 0 | 4 | 0 | colspan="2" | - | 31 | 2 | ||
| 2009 | J2 League | 28 | 1 | 1 | 0 | colspan="2" | - | colspan="2" | - | 29 | 1 | ||
| 2010 | 31 | 5 | 1 | 0 | colspan="2" | - | colspan="2" | - | 32 | 5 | |||
| 2011 | 25 | 4 | 0 | 0 | colspan="2" | - | colspan="2" | - | 25 | 4 | |||
| 2012 | 35 | 4 | 1 | 1 | colspan="2" | - | colspan="2" | - | 36 | 5 | |||
| 2013 | 37 | 5 | 2 | 0 | colspan="2" | - | colspan="2" | - | 39 | 5 | |||
| 2014 | Yokohama FC | J2 League | 9 | 1 | 0 | 0 | colspan="2" | - | colspan="2" | - | 9 | 1 | |
| 2015 | 1 | 0 | 0 | 0 | colspan="2" | - | colspan="2" | - | 1 | 0 | |||
| Total | 315 | 37 | 15 | 3 | 20 | 1 | 2 | 0 | 352 | 41 | |||