First, a run-down of the particulars:
- A weight limit of 137 pounds is observed for this list.
- The lineage was started with the first fight within the weight class between two undefeated fighters.
- Recordkeeping and regulations (weight classes) were notoriously bad for Women’s MMA. As a result, we may update this list if new info presents itself.
Your current lineal Bantamweight champion is Vacant
The full history is below. Note, the colored backgrounds indicate a title change.
MMA Women’s Bantamweight Lineal Championship History
| Date | Champion | Outcome | Challenger | Notes |
| 1999-02-02 | Jennifer Howe | WIN | Manuela Wilp | |
| 1999-05-15 | Jennifer Howe | WIN | Nicole Anaya | |
| 2002-03-16 | Jennifer Howe | WIN | Angela Reestad | |
| 2003-02-23 | Jennifer Howe | WIN | Amanda Buckner | |
| 2003-10-25 | Jennifer Howe | WIN | Judy Neff | |
| 2004-07-14 | Jennifer Howe | WIN | Linda Langerak | |
| 2004-11-06 | Roxanne Modafferi | WIN | Jennifer Howe | |
| 2005-03-05 | Roxanne Modafferi | WIN | Jennifer Howe | |
| 2005-03-19 | Laura DAuguste | WIN | Roxanne Modafferi | |
| 2006-08-18 | Laura DAuguste | WIN | Megumi Yabushita | D’Auguste retired after this fight. |
| 2006-08-22 | Tara LaRosa | WIN | Amanda Buckner | Vacant title. Top contenders. |
| 2006-12-02 | Tara LaRosa | WIN | Julia Berezikova | |
| 2007-02-18 | Tara LaRosa | WIN | Shayna Baszler | |
| 2007-07-14 | Tara LaRosa | WIN | Kelly Kobold-Schmitz | |
| 2009-01-23 | Tara LaRosa | WIN | Alexis Davis | |
| 2010-05-21 | Roxanne Modafferi | WIN | Tara LaRosa | |
| 2010-07-23 | Sarah Kaufman | WIN | Roxanne Modafferi | |
| 2010-10-09 | Marloes Coenen | WIN | Sarah Kaufman | |
| 2011-03-05 | Marloes Coenen | WIN | Liz Carmouche | |
| 2011-07-30 | Miesha Tate | WIN | Marloes Coenen | |
| 2012-03-03 | Ronda Rousey | WIN | Miesha Tate | |
| 2012-08-18 | Ronda Rousey | WIN | Sarah Kaufman | |
| 2013-02-23 | Ronda Rousey | WIN | Liz Carmouche | |
| 2013-12-28 | Ronda Rousey | WIN | Miesha Tate | |
| 2014-02-22 | Ronda Rousey | WIN | Sara McMann | |
| 2014-07-05 | Ronda Rousey | WIN | Alexis Davis | |
| 2015-02-28 | Ronda Rousey | WIN | Cat Zingano | |
| 2015-08-01 | Ronda Rousey | WIN | Bethe Correia | |
| 2015-11-14 | Holly Holm | WIN | Ronda Rousey | |
| 2016-03-05 | Miesha Tate | WIN | Holly Holm | |
| 2016-07-09 | Amanda Nunes | WIN | Miesha Tate | |
| 2016-12-30 | Amanda Nunes | WIN | Ronda Rousey | |
| 2017-09-09 | Amanda Nunes | WIN | Valentina Shevchenko | |
| 2018-05-12 | Amanda Nunes | WIN | Raquel Pennington | |
| 2019-07-06 | Amanda Nunes | WIN | Holly Holm | |
| 2019-12-14 | Amanda Nunes | WIN | Germaine de Randamie | |
| 2021-12-11 | Julianna Pena | WIN | Amanda Nunes | |
| 2022-07-30 | Amanda Nunes | WIN | Julianna Pena | |
| 2023-06-10 | Amanda Nunes | WIN | Irene Aldana | Amanda Nunes retires |
