o-Nitroanisole is an organic compound with the formula CH3OC6H4NO2.

Three isomers of nitroanisole exist, but the o-isomer is the most commercially important.

It is a colorless liquid.

It is prepared by treatment of o-chloronitrobenzene with sodium methoxide:[1] The resulting 2-chloronitrobenzene can be reduced to o-anisidine, which is a precursor to dyes.