 "Official Girl" was received with generally positive reviews from music critics.August Brown of the "Los Angeles Times" wrote the fact that Cassie is "a total cypher for whatever producer she's working with makes for some pretty interesting moments of electro-R&B minimalism" and "such an aggressive non-presence in any song still makes for striking radio singles," despite the track not being her best work.MTV's Jocelyn Vena felt that Cassie's "personality comes through on her latest single," describing it as "a song dedicated to independent-spirited ladies everywhere."