UFC on Fox 23: Shevchenko vs. Peña

• Cast: Valentina Shevchenko, Julianna Peña, Jorge Masvidal, Donald Cerrone, Francis Ngannou
• Duration: N/A minutes
• Genre: Action
• Rating: 6/10
• Release Date: 2017-01-28

UFC on Fox 23: Shevchenko vs. Peña was a mixed martial arts event promoted by the Ultimate Fighting Championship held on January 28, 2017 at Pepsi Center in Denver, Colorado. A potential UFC Women's Bantamweight Championship title eliminator between multiple-time muay thai world champion Valentina Shevchenko and The Ultimate Fighter: Team Rousey vs. Team Tate bantamweight winner Julianna Peña served as the event headliner.