Julianna Peña (12-6, 8) was born in Spokane, Washington, U.S. on August 19, 1989. At the age of 19 years on May 9, 2009, she made her professional MMA debut against Raylene Harvey, winning the fight via 1st-round submission.
On April 4, 2015, 25-year old Julianna Peña made her UFC debut on her 8th professional MMA fight at UFC Fight Night: Mendes vs. Lamas against Milana Dudieva, winning the fight in the 1st round via TKO.
She became the UFC bantamweight champion on December 11, 2021 at age 32 on her 15th professional MMA fight at UFC 269 after defeating a 33-year old Amanda Nunes via 2nd-round submission.
Peña's last fight was a bantamweight (UFC Women's Championship) title defense against Kayla Harrison on June 7, 2025. She lost the fight via 2nd-round submission. She is on a 1-fight losing streak.
She has fought 11 times in the UFC, and has a record of 7 wins and 4 losses in the promotion.
Some of Julianna Peña's best fights have been against Amanda Nunes, Raquel Pennington, Milana Dudieva, Sara McMann, Jessica Eye, Cat Zingano and Nicco Montaño.
Peña has 6 losses on her MMA record.
| # | Date | Opponent | Promotion | Weight | Round | Method | Result |
|---|---|---|---|---|---|---|---|
18  | Jun 7, 2025 35 years, 9 months 12-6 (8) | 34 years, 11 months 18-1 (13) | UFC | BT | 2 | SUB | LOSS Kimura Lost UFC Women's bantamweight title |
17  | Oct 5, 2024 35 years, 1 months 12-5 (8) | 36 years, 1 months 16-8 (4) | UFC | BT | 5 | SD | WIN Won UFC Women's bantamweight title |
16  | Jul 30, 2022 32 years, 11 months 11-5 (8) | 34 years, 2 months 21-5 (16) | UFC | BT | 5 | UD | LOSS Lost UFC Women's bantamweight title |
15 | Dec 11, 2021 32 years, 3 months 11-4 (8) | 33 years, 6 months 21-4 (16) | UFC | BT | 2 | SUB | WIN Rear-naked choke Won UFC Women's bantamweight title |
14  | Jan 24, 2021 31 years, 5 months 10-4 (7) | 40 years, 4 months 12-5 (6) | UFC | BT | 3 | SUB | WIN Rear-naked choke |
13  | Oct 4, 2020 31 years, 1 months 9-4 (6) | 36 years, 5 months 9-4 (4) | UFC | BT | 3 | CKO | LOSS Guillotine choke |
12  | Jul 13, 2019 29 years, 10 months 9-3 (6) | 30 years, 6 months 4-2 (2) | UFC | BT | 3 | UD | WIN |
11  | Jan 28, 2017 27 years, 5 months 8-3 (6) | 28 years, 10 months 13-2 (9) | UFC | BT | 2 | SUB | LOSS Armbar |
10  | Jul 9, 2016 26 years, 10 months 8-2 (6) | 34 years 9-1 (8) | UFC | BT | 3 | UD | WIN |
9  | Oct 3, 2015 26 years, 1 months 7-2 (6) | 29 years, 2 months 11-3 (3) | UFC | BT | 3 | UD | WIN |
8 | Apr 4, 2015 25 years, 7 months 6-2 (6) | Milana Dudieva | UFC | BT | 1 | TKO | WIN Punches and elbows |
7 | Nov 30, 2013 24 years, 3 months 5-2 (5) | Jessica Rakoczy | TUF | BT | 1 | TKO | WIN Punches |
6  | Feb 8, 2013 23 years, 5 months 4-2 (4) | 28 years, 2 months 1-0 (1) | FL | 3 | UD | LOSS | |
5  | Apr 19, 2012 22 years, 8 months 4-1 (4) | 23 years, 11 months 1-0 (1) | BT | 2 | TKO | LOSS Doctor stoppage | |
4 | Dec 15, 2011 22 years, 3 months 4-0 (4) | Rachael Swatez | BT | 2 | SUB | WIN Guillotine choke | |
3 | Dec 5, 2009 20 years, 3 months 3-0 (3) | Stephanie Webber | BT | 2 | SUB | WIN Armbar | |
2 | Aug 15, 2009 19 years, 11 months 2-0 (2) | Robyn Dunne | BT | 1 | TKO | WIN Punches | |
1 | May 9, 2009 19 years, 8 months 1-0 (1) | Raylene Harvey | BT | 1 | SUB | WIN Rear-naked choke |
