SM Rookies (Korean: 에스엠루키즈, stylized in all caps as SMROOKIES) is a pre-debut training team created by South Korean entertainment agency SM Entertainment in 2013, composed of trainees who have yet to join an idol group. From 2013 to 2023, the team officially introduced 35 members, of which 27 debuted under SM Entertainment in different groups: Red Velvet (4), NCT and five of its subunits (21), Aespa (1), Riize (2), and Lami as an actress.