PECO is a British manufacturer of model railway accessories.

Peco or PECO may also refer to:

• PECO Energy Company, formerly the Philadelphia Electric Company, now a subsidiary of Exelon
• Panay Electric Company (PECO), an electric power distribution company in the Philippines
• peco (unit), the unit of measurement of the dielectric properties of concrete
• Asim Peco, linguist
• Pakistan Engineering Company (PECO), an engineering company in Pakistan
• PECO-InspX, a global manufacturer of Fill Level Monitoring, X-ray Inspection and related industrial systems
• Photoelectrochemical oxidation, a process by which incident light enables a semiconductor material to promote a catalytic oxidation reaction
• Peco (model), Japanese model, television personality, and singer

• Pecos (disambiguation)
• Pecco (disambiguation)

This disambiguation page lists articles associated with the title Peco.
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