Brachiacantha barberi, or Barber's lady beetle, is a species of lady beetle in the family Coccinellidae. It is found in North America, where it has been recorded from Texas.
Adults reach a length of about 3.30 mm (males) and 3.10 mm (females). The have a yellow head. The pronotum is black with a reddish yellow anterior border and lateral area. The elytron is black with a yellow apical spot, median band and humeral spot.
This species is named for H. S. Barber.