TKI

TKI may refer to:


 * Tyrosine kinase inhibitor, a pharmaceutical drug
 * McKinney National Airport (FAA LID code), McKinney, Texas, US
 * Tokeen Seaplane Base (IATA code), Alaska, US
 * Thomas–Kilmann Conflict Mode Instrument, a conflict style inventory
 * Turkish Coal Operations Authority (TKİ, Türkiye Kömür İşletmeleri Kurumu)