Abstract: This study aims to investigate the tectonic activity with geomorphological indices within Burdur andYarışlı Basins in the south of Burdur. The study area consists of Jurassic– Cretaceous ophiolitic melange, LateTriassic-Early Jurassic recrystallized limestone, Late Miocene – Early Pliocene marl and clayed limestone and LatePliocene – Early Pleistocene alluvial fan deposit. The study area covers the NE section of the Fethiye - Burdur FaultZone (FBFZ). The FBFZ, which caused many earthquakes in historical and instrumental periods, is representedby NE-SW trending Burdur, Karakent, Karacaören faults and NW-SE trending Karaçal fault. In addition there aremany small scale faults in the area. In order to determine the tectonic activity of the region, some geomorphologicalindices such as Mountain-Front Sinuosity (Smf), Ratio of Valley-Floor Width to Valley Height (Vf), NormalizedStream Length – Gradient Index (SLK), Asymmetry Factor (AF), Topographic Symmetry Factor (T), and Indexof relative active tectonics (Iat) were calculated. The obtained data were compared with the field observations.According to the results, Smf ranges between 1.03-1.66, average Vf ranges between 0.28-10.85, average SLK rangesbetween 1.84-7.95 and T ranges between 0-0.6. The AF value of Burdur Basin is 60,14 whereas the Iat values of subareas cover Class-2 and Class-3. Geomorphic indices, confirming the other geological findings, show that the studyarea has moderate to high level tectonic activity.