Methyl formate, also called methyl methanoate, is the methyl ester of formic acid. It has the chemical formula HCOOCH3. The simplest example of a carboxylate ester, it is a colourless liquid with an ethereal odour, high vapor pressure, and low surface tension. It is a precursor to many other compounds of commercial interest.

Methyl formate is used primarily to manufacture formamide, dimethylformamide, and formic acid. These compounds are precursors or building blocks for many useful derivatives.

Because of its high vapor pressure, it is used for quick-drying finishes and as a blowing agent for some polyurethane foam applications. and as a replacement for CFCs, HCFCs, and HFCs. Methyl formate has near zero ozone depletion potential and zero global warming potential and a short atmospheric life of 3 days.

It is also used as an insecticide.