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

• Asim Peco, linguist

• Pakistan Engineering Company (PECO), an engineering company in Pakistan

• 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

See also

• Pecos (disambiguation)

• Pecco (disambiguation)