2,6-Dichlorobenzonitrile, commonly known as dichlobenil, is widely used in the agricultural industry as a highly effective herbicide, particularly for controlling weeds in field crops such as wheat, barley, and corn. It is also utilized to prevent weed growth in non-agricultural areas, including sports fields, public parks, and roadsides.

In the chemical industry, 2,6-Dichlorobenzonitrile serves as a key intermediate in the synthesis of other chemicals, such as insecticides and various other pesticides, as well as in the production of more complex chemical compounds.

Additionally, it is employed in scientific research, such as studying the mechanisms of action of herbicides and developing new, more efficient, and environmentally friendly chemicals.