Bartholomeus Molenaer (1618 in Haarlem – early September 1650, in Haarlem) was a Dutch Golden Age genre painter.
His parents were a tailor Jan Mientsen Molenaer and his second wife, Grietgen Adriaensdr.
According to the RKD he was the brother of the painters Nicolaes and Jan Miense Molenaer.
[1] He became a member of the Haarlem Guild of St. Luke in 1640.
[1] The next year, 1641 he got married, and till 1646 lived by his brother Jan Miense at Lombaertsteech (Lombardsteeg).