ABSTRAK Penelitian tentang kebiasaan makan ikan lemeduk (Barbonymus schwanenfeldii) telah dilakukan di Kabupaten Aceh Tamiang pada bulan Oktober 2016. Penelitian ini bertujuan untuk mengetahui kebiasaan makan ikan lemeduk (Barbonymus schwanenfeldii) sebagai dasar pengembangan budidaya. Metode yang digunakan pada penelitian ini adalah metode purposive sampling, dimana lokasi penyamplingan dibagi atas 3 habitat yang berbeda meliputi habitat alami, kawasan perkebunan sawit dan kawasan pemukiman penduduk. Penangkapan ikan dilakukan menggunakan alat tangkap jala (ukuran mata jaring 1 inch), kemudian ikan yang tertangkap diawetkan menggunakan larutan formalin 10%. Ikan lemeduk yang tertangkap selama penelitian berjumlah 152 ekor, dimana 140 ekor ikan terisi makanan dan 12 ekor kosong. Hasil analisis isi lambung ditemukan ikan lemeduk memakan rumput-rumputan, lumut, biji-bijian, cacing dan serangga. Berdasarkan analisis nilai IBT dari semua jenis makanan dan hasil analisis antara panjang usus berbanding panjang total tubuh menunjukkan bahwa ikan lemeduk tergolong jenis omnivora. Hasil analisis berdasarkan kelas panjang dapat disimpulkan bahwa tidak ada perbedaan komposisi makanan pada semua kelas panjang. Hasil analisis berdasarkan lokasi penelitian dapat disimpulkan bahwa tidak terdapat perbedaan jenis makanan. Kata kunci: Ikan lemeduk, kebiasaan makan, omnivora, Tamiang   ABSTRACT Study on feed habit of lemeduk (Barbonymus schwanenfeldii) was conducted in Aceh Tamiang district on Oktober, 2016. The objective of the present study was to determine feed habit of lemeduk (Barbonymus schwanenfeldii) as the basis for the development of aquaculture. Purposive sampling method was conducted by investigating river based on 3 different habitats include natural habit, oil palm plantation area and settlements region. Cast net (mesh size of 1 inch) were used to catch the fish samples, then samples were preserved using 10% formalin. Lemeduk caught during the study amounted to 152 samples, where 140 samples filled food and 12 samples were empty. The results of the analysis of stomach found lemeduk eat grass, lichens, seeds, worms and insects. Based on the analysis of IP (index of prepoderance) value of all types of feed and analytical results between the length of the colon compared to the total length of the body showed that lemeduk classified omnivore. The results of the analysis based on the length of the class can be concluded that there is no difference in the composition of the food in all classes of length. The results of the analysis based on the location of this study concluded that there is no difference in the type of food. Keywords: Lemeduk, feeding habit, omnivorous, Tamiang