A. tricolor

A. tricolor may refer to:


 * Agelaius tricolor, the tricolored blackbird, a bird species found from Northern California in the United States to upper Baja California in Mexico
 * Amaranthus tricolor, an ornamental plant species
 * Atlapetes tricolor, the tricoloured brush-finch, a bird species found in Colombia, Ecuador, and Peru

Synonyms

 * Aganisia tricolor, a synonym for Aganisia cyanea, an orchid species