Sealer may refer to:
A person or ship engaged in seal hunting Sealant, a blocking substance, often used in construction Concrete sealers, products applied to concrete to protect it from corrosion Heat sealer, machine using heat to seal products Stone sealer, surface treatment product to retard staining and corrosion in natural stone One who seals, in the tradition of sealing (Mormonism)
See also Sealer Hill, South Shetland Islands, Antarctica Sealers' Oven, bread oven of mud and stone built by sealers around 1800 near Albany, Western Australia Sealers Passage, marine channel in the South Shetland Islands, Antarctica Sealers' War, conflict in southern New Zealand started by sealers in 1810 Seal (disambiguation) Sealing (disambiguation)