"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." Jonathan Reyes of AllHipHop praised Danja's production noting "it packs the signature that we've grown to love from the Virginia native," continuing, "The lyrics are simple and really show the Clutch's superior ability to adapt to each artist they write for. As a statement, "Official Girl" really makes one." Waqar Hassan of AXS also pointed out that "the beat on this song remains in your head for years," and applauded the performers: "The singing on this track is perfect too. Lil Wayne shows up in the middle of the track to show his rapping skills and does his part extremely well."
