Becky Lynch held the Women's Tag Team Championship once with Lita, the SmackDown Women's Championship four times, of which she was the inaugural champion, and the Raw Women's Championship twice, for which she holds the record for the longest reign. Since February 2019 she has been in a romantic relationship with her colleague Seth Rollins. On December 7, 2020, the couple announced the birth of their first daughter Roux. On June 29, 2021, the couple got married.
On the February 27, 2023 episode of Raw, she won the WWE Women's Tag Team Championship alongside Lita, after beating Dakota Kai and Iyo Sky in the main event of the episode. They held the belts until April 10, when they lost it to Raquel Rodriguez and Liv Morgan. Prior to the match, Lita was attacked backstage by a mysterious assailant and was replaced by Trish Stratus. She also won the 2019 edition of the Women's Royal Rumble match and took part in the first women's Tables matches, Last Woman Standing matches and TLC matches in history. In 2019, readers of Pro Wrestling Illustrated and the Wrestling Observer Newsletter voted her Woman of the Year.