Dress blues may refer to:

• Uniforms of the British Army § No.1: Temperate ceremonial, British Army dress uniform
• Uniforms of the Royal Marines § Number 1A Regimental Blues Dress - 'Blues'
• Army Service Uniform § Army Blue Service Uniform, of the United States Army
• Uniforms of the United States Marine Corps § Blue Dress
• Uniforms of the United States Navy § Service dress
• Uniforms of the United States Coast Guard § Dress uniforms
• "Dress Blues" (song), song by Jason Isbell from his 2007 album Sirens of the Ditch