Mackenzie Lynne Dern Santos

Mackenzie Lynne Dern Santos (born March 24, 1993)

Mackenzie Lynne Dern Santos is an American professional mixed martial artist and Brazilian Jiu-Jitsu practitioner. 

She is a former world No. 1 ranked IBJJF competitor, currently ranked 6th among the female divisions.

She is an ADCC and no gi BJJ (black belt) World Champion.

As of April 12, 2022, she is #4 in the UFC women's strawweight rankings and #12 in the UFC women's pound for pound rankings.

Dern was born in Arizona, the daughter of Wellington "Megaton" Dias, a highly decorated grappling competitor himself.

Dern is married to professional surfer Wesley Santos.