The American Association of Textile Chemists and Colorists is a professional organization of textile chemists and colorists, organized as a nonprofit corporation. It has both individual and corporate members. Chapters are located in many regions of the United States and in India. AATCC publishes a monthly journal, AATCC Review, with technical articles of interest to its professional members.

Together with its counterpart in the United Kingdom, the Society of Dyers and Colourists, it maintatins the Colour Index International, a reference database of pigments and dyes.