TCD

TCD may refer to:

• Chad (ISO 3-letter country code)
• Teller cash dispenser, used by bank tellers
• The College Dropout, the debut studio album by Kanye West
• Transport de Chalands de Débarquement, a type of French Navy ship
• Trinity College Dublin, Ireland, a university
• The Chambers Dictionary

Medicine and science

• Thalamocortical dysrhythmia, in neuropsychiatric discorders
• Thermal conductivity detector, used in gas chromatography
• Thousand cankers disease, a disease of walnuts
• Transcranial Doppler, a blood flow test
• T cell depletion
• Tricyclodecane, a chemical compound used as jet fuel