T. variabilis

T. variabilis may refer to:
 * Thamniochloris variabilis, an alga species in the genus Thamniochloris
 * Tillandsia variabilis, a plant species native to Bolivia, Costa Rica, Mexico and the United States
 * Tramitichromis variabilis, a fish species found in Malawi, Mozambique and Tanzania
 * Trialeurodes variabilis, the papaya whitefly, an insect species in the genus Trialeurodes
 * Typhula variabilis, a plant pathogen species