| Nao Ikeyama | |
| Weight: | |
| Height: | 5 ft 0.5 in |
| Nationality: | Japanese |
| Birth Date: | 18 September 1969 |
| Birth Place: | Maniwa, Okayama, Japan |
| Style: | Orthodox |
| Total: | 29 |
| Wins: | 18 |
| Ko: | 5 |
| Losses: | 7 |
| Draws: | 4 |
Nao Ikeyama (born 18 September 1969[1]) is a Japanese boxer who held the WBO atomweight title from 17 May 2014 until 29 July 2018. She made her professional debut on 30 November 2003, where she defeated Satoko Kamimura by unanimous decision.[2] Ikeyama made six successful title defenses for her belt, with her sixth title defense coming against Saemi Hanagata on 12 July 2017.[3] In 2015, Ikeyama participated in the first ever professional boxing event in Sri Lanka, where she defended her title against Jujeath Nagaowa.[4]
| Result | Record | Opponent | Type | Round, time | Date | Location | Notes | ||
|---|---|---|---|---|---|---|---|---|---|
| 29 | Loss | 18–7–4 |  Kayoko Ebata | UD | 6 | 15 Oct 2021 | |||
| 28 | Loss | 18–6–4 | Saemi Hanagata | SD | 10 | 12 Sep 2019 | |||
| 27 | Draw | 18–5–4 | Yuko Kuroki | SD | 8 | 14 Apr 2019 | |||
| 26 | Loss | 18–5–3 | Ayaka Miyao | UD | 10 | 20 Nov 2018 | |||
| 25 | Loss | 18–4–3 | Mika Iwakawa | SD | 10 | 29 Jul 2018 | |||
| 24 | Draw | 18–3–3 | Saemi Hanagata | SD | 10 | 11 Jul 2017 | |||
| 23 | Win | 18–3–2 | Ayaka Miyao | TKO | 6 (10), | 13 Dec 2016 | |||
| 22 | Draw | 17–3–2 | Saemi Hanagata | 10 | 13 Jun 2016 | ||||
| 21 | Win | 17–3–1 | Jujeath Nagaowa | UD | 10 | 19 Dec 2015 | |||
| 20 | Win | 16–3–1 | Norj Guro | UD | 10 | 28 Feb 2015 | |||
| 19 | Win | 15–3–1 | Masae Akitaya | UD | 10 | 20 Sep 2014 | |||
| 18 | Win | 14–3–1 | Jessebelle Pagaduan | UD | 10 | 17 May 2014 | |||
| 17 | Win | 13–3–1 | Mika Iwakawa | 6 | 14 Dec 2013 | ||||
| 16 | Win | 12–3–1 | Mika Oda | SD | 6 | 5 Dec 2010 | |||
| 15 | Loss | 11–3–1 |  Ji Hyun Park | UD | 10 | 15 Aug 2010 | |||
| 14 | Win | 11–2–1 | Masae Akitaya | UD | 6 | 16 May 2010 | |||
| 13 | Loss | 10–2–1 | Momo Koseki | UD | 10 | 2 May 2009 | |||
| 12 | Win | 10–1–1 | Satoko Kamimura | UD | 6 | 23 Nov 2008 | |||
| 11 | Win | 9–1–1 |  Buasawan Wisetchat | 2 (6), | 3 Aug 2008 | ||||
| 10 | Win | 8–1–1 |  Krisztina Belinszky | UD | 10 | 18 Nov 2007 | |||
| 9 | Win | 7–1–1 | Na Kyung Kim | KO | 3 (6) | 13 May 2007 | |||
| 8 | Win | 6–1–1 | Kumiko Nishida | 8 | 1 Oct 2006 | ||||
| 7 | Win | 5–1–1 | Ayaka Miyao | KO | 4 (8) | 30 Apr 2006 | |||
| 6 | Win | 4–1–1 | Gypsy Taeko | UD | 6 | 20 Nov 2005 | |||
| 5 | Draw | 3–1–1 | Nanako Kikuchi | PTS | 8 | 12 Jun 2005 | |||
| 4 | Win | 3–1 | Marika Watanabe | 6 | 13 Mar 2005 | ||||
| 3 | Loss | 2–1 | Nanako Kikuchi | UD | 4 | 23 May 2004 | |||
| 2 | Win | 2–0 | Yuki Sakurada | 2 (4) | 22 Feb 2004 | ||||
| 1 | Win | 1–0 | Satoko Kamimura | 4 | 30 Nov 2003 |