Oldest champions: since 2001
Oldest fighters to win an undisputed UFC title, by age on the day.
Reigns are derived from championship bouts. When a belt was vacated or stripped outside a title fight, the reign is shown ending at the next title fight in that division, so a few run long; a title awarded without a fight (José Aldo's in 2010, for one) starts at the champion's first UFC title fight.
102 fighters.
| # | Fighter | Age | Division | Won | Ended |
|---|---|---|---|---|---|
| 51 | Brock Lesnar | 31 years, 126 days | Heavyweight | Nov 15, 2008 | Oct 23, 2010 |
| 52 | Khamzat Chimaev | 31 years, 107 days | Middleweight | Aug 16, 2025 | May 9, 2026 |
| 53 | Luke Rockhold | 31 years, 56 days | Middleweight | Dec 12, 2015 | Jun 4, 2016 |
| 54 | Matt Hughes | 31 years, 9 days | Welterweight | Oct 22, 2004 | Nov 18, 2006 |
| 55 | Leon Edwards | 30 years, 360 days | Welterweight | Aug 20, 2022 | Jul 27, 2024 |
| 56 | Lyoto Machida | 30 years, 358 days | Light Heavyweight | May 23, 2009 | May 8, 2010 |
| 57 | Dominick Cruz | 30 years, 314 days | Bantamweight | Jan 17, 2016 | Dec 30, 2016 |
| 58 | Rich Franklin | 30 years, 242 days | Middleweight | Jun 4, 2005 | Oct 14, 2006 |
| 59 | Johny Hendricks | 30 years, 184 days | Welterweight | Mar 15, 2014 | Dec 6, 2014 |
| 60 | Cain Velasquez | 30 years, 154 days | Heavyweight | Dec 29, 2012 | Jun 13, 2015 |
| 61 | Rafael Dos Anjos | 30 years, 139 days | Lightweight | Mar 14, 2015 | Jul 7, 2016 |
| 62 | Tim Sylvia | 30 years, 41 days | Heavyweight | Apr 15, 2006 | Mar 3, 2007 |
| 63 | Dricus Du Plessis | 30 years, 6 days | Middleweight | Jan 20, 2024 | Aug 16, 2025 |
| 64 | Natalia Silva | 29 years, 242 days | Women's Flyweight | Oct 3, 2026 | Champion |
| 65 | Jiri Prochazka | 29 years, 240 days | Light Heavyweight | Jun 11, 2022 | Dec 10, 2022 |
| 66 | Alexa Grasso | 29 years, 207 days | Women's Flyweight | Mar 4, 2023 | Sep 14, 2024 |
| 67 | Miesha Tate | 29 years, 200 days | Women's Bantamweight | Mar 5, 2016 | Jul 9, 2016 |
| 68 | Khabib Nurmagomedov | 29 years, 199 days | Lightweight | Apr 7, 2018 | May 15, 2021 |
| 69 | Forrest Griffin | 29 years, 111 days | Light Heavyweight | Jul 5, 2008 | Dec 27, 2008 |
| 70 | Rashad Evans | 29 years, 93 days | Light Heavyweight | Dec 27, 2008 | May 23, 2009 |
| 71 | Brandon Moreno | 29 years, 45 days | Flyweight | Jan 21, 2023 | Jul 8, 2023 |
| 72 | BJ Penn | 29 years, 37 days | Lightweight | Jan 19, 2008 | Apr 10, 2010 |
| 73 | Chris Weidman | 29 years, 19 days | Middleweight | Jul 6, 2013 | Dec 12, 2015 |
| 74 | Nicco Montano | 28 years, 350 days | Women's Flyweight | Dec 1, 2017 | Dec 8, 2018 |
| 75 | Quinton Jackson | 28 years, 340 days | Light Heavyweight | May 26, 2007 | Jul 5, 2008 |
| =76 | Rose Namajunas | 28 years, 299 days | Women's Strawweight | Apr 24, 2021 | May 7, 2022 |
| =76 | Sean O'Malley | 28 years, 299 days | Bantamweight | Aug 19, 2023 | Sep 14, 2024 |
| 78 | Jack Della Maddalena | 28 years, 242 days | Welterweight | May 10, 2025 | Nov 15, 2025 |
| 79 | Frankie Edgar | 28 years, 176 days | Lightweight | Apr 10, 2010 | Feb 25, 2012 |
| 80 | Mauricio Rua | 28 years, 164 days | Light Heavyweight | May 8, 2010 | Mar 19, 2011 |
| 81 | Ilia Topuria | 28 years, 158 days | Lightweight | Jun 28, 2025 | Jun 14, 2026 |
| 82 | Conor McGregor | 28 years, 121 days | Lightweight | Nov 12, 2016 | Apr 7, 2018 |
| 83 | Benson Henderson | 28 years, 101 days | Lightweight | Feb 25, 2012 | Aug 31, 2013 |
| 84 | Junior Dos Santos | 27 years, 286 days | Heavyweight | Nov 12, 2011 | Dec 29, 2012 |
| 85 | Jessica Andrade | 27 years, 228 days | Women's Strawweight | May 11, 2019 | Aug 31, 2019 |
| 86 | Joanna Jedrzejczyk | 27 years, 208 days | Women's Strawweight | Mar 14, 2015 | Nov 4, 2017 |
| 87 | Dave Menne | 27 years, 61 days | Middleweight | Sep 28, 2001 | Jan 11, 2002 |
| 88 | Renan Barao | 27 years, 1 day | Bantamweight | Feb 1, 2014 | May 24, 2014 |
| 89 | Vitor Belfort | 26 years, 305 days | Light Heavyweight | Jan 31, 2004 | Aug 21, 2004 |
| 90 | Andrei Arlovski | 26 years, 245 days | Heavyweight | Oct 7, 2005 | Apr 15, 2006 |
| 91 | Anthony Pettis | 26 years, 216 days | Lightweight | Aug 31, 2013 | Mar 14, 2015 |
| 92 | Jens Pulver | 26 years, 79 days | Lightweight | Feb 23, 2001 | Feb 28, 2003 |
| 93 | Demetrious Johnson | 26 years, 40 days | Flyweight | Sep 22, 2012 | Aug 4, 2018 |
| 94 | Ronda Rousey | 26 years, 22 days | Women's Bantamweight | Feb 23, 2013 | Nov 14, 2015 |
| 95 | Max Holloway | 25 years, 181 days | Featherweight | Jun 3, 2017 | Dec 14, 2019 |
| 96 | Cody Garbrandt | 25 years, 176 days | Bantamweight | Dec 30, 2016 | Nov 4, 2017 |
| 97 | Ricco Rodriguez | 25 years, 39 days | Heavyweight | Sep 27, 2002 | Feb 28, 2003 |
| 98 | Frank Mir | 25 years, 26 days | Heavyweight | Jun 19, 2004 | Oct 7, 2005 |
| 99 | Carlos Newton | 24 years, 260 days | Welterweight | May 4, 2001 | Nov 2, 2001 |
| 100 | Jose Aldo | 24 years, 233 days | Featherweight | Apr 30, 2011 | Dec 12, 2015 |