Clinker may refer to:

• Clinker (boat building), construction method for wooden boats
• Clinker (waste), waste from industrial processes
• Clinker (cement), a kilned then quenched cement product
• Clinker brick, rough dark coloured bricks
• Clinker Peak, a volcanic peak in British Columbia, Canada

Clinker may also be used for:

• Small rocks that form in some ʻAʻā lava flows
• Waste from coal fires

[ People with the surname Clinker

• Humphry Clinker, title character of Tobias Smollett's 1771 novel The Expedition of Humphry Clinker

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