Blacker can refer to the following people:

• Robert Roe Blacker, namesake of Caltech's Blacker House
• Terence Blacker, the English author
• Charles Blacker Vignoles, the British engineer

Blacker can refer to the following things:

• The word blacker can be a slang term for an encryption device
• Blacker Bombard, a WWII-era British anti-tank weapon
• Manistee County-Blacker Airport, serving the American town of Manistee, Michigan
• Blacker House, an undergraduate student residence at the California Institute of Technology
• Blacker (Transformers) - A fictional character.