Roxana Daniela Popa Nedelcu (born June 2, 1997 in Constanța) is a Romanian-born Spanish artistic gymnast who has represented Spain in all her international competitions. Popa first came into contact with gymnastics in her native Romania, where there is a long tradition in the sport, and there she had her early training. Now, she trains at the Spanish National Training Center (CARD), and is a part of the EGAD Los Cantos Alcorcon in Madrid. A member of the Spain women's national gymnastics team, she competed at the 2013, 2014, 2015 and 2019 World Championships, as well as the 2020 Summer Olympics.