ABSTRACT Research on the distribution and abundance of fish species Apogon Kiensis, from Apogonidae family, was conducted on September 2017 on seagrass Ahmad Rhang Manyang bay, Lamreh, Aceh Besar District. Distribution data collection and abundance using systematic sampling method and belt transect technique. Fish datas collect starts from at 1 to 5 meter with 3 repetitions. The result of observation Apogonidae family fish distribution showed that the index value of morisita ranged from 0.91 - 1 with the random and uniform category. The results of observation of fish family abundance Apogonidae at every depth of 1 meter to 5 meters ranged between 7 ind / 100 m^2 until 16,67 ind / 100 m^2and known relative abundance ranged between 100%, relative frequency and frequency ranged between 100%. Based on the results of depth comparison, apogonidae fish abundance along with depth increases the amount of fish is also increasing and fish distribution pattern is randomly caused by the environmental condition is homongent, while fish are uniformly influenced by high natural selectivity so that there is a competition that pushes for the same spatial distribution. This spread may be suspected due to food competition. Keywords : Distribution and abundance of Apogon Kiensis fish, Apogonidae family, Ahmad Rhang Manyang Bay. ABSTRAK Penelitian tentang distribusi dan kelimpahan ikan spesies Apogon Kiensis, Famili Apogonidae telah selesai dilakukan pada tanggal 25 September 2017 pada kawasan padang lamun di Perairan Teluk Ahmad Rhang Manyang, Lamreh, Kabupaten Aceh Besar. Pengambilan data distribusi dan kelimpahan menggunakan metode sistematik sampling serta tehnik metode belt transect. Pengambilan data ikan dilakukan dimulai pada kedalaman 1 sampai 5 meter serta dilakukan 3 kali pengulangan. Hasil pengamatan distribusi ikan famili Apogonidae menunjukan nilai indeks morisita berkisar antara 0,91 - 1 dengan kategori acak dan seragam. Hasil pengamatan kelimpahan ikan famili Apogonidae pada setiap kedalaman 1 meter sampai 5 meter berkisar antara 7 ind/100m2 sampai 16,67 ind/100 m2 dan diketahui kelimpahan relatif berkisar antara 100%, frekuensi dan frekuensi relatif berkisar antara 100%. Berdasarkan hasil perbandingan kedalaman, kelimpahan ikan apogonidae seiring pertambahan kedalaman jumlah ikan semakin meningkat dan pola distibusi ikan secara acak disebabkan terjadi kondisi lingkungan bersifat homongen, sedangkan ikan secara seragam dipengaruhi selektifitas alam yang tinggi sehingga timbul kompetisi yang mendorong untuk pembagian ruang hidup yang sama penyebaran ini dapat diduga karena persaingan makanan. Kata Kunci : Distribusi dan kelimpahan ikan Apogon Kiensis, Famili Apogonidae, Teluk Ahmad Rhang Manyang.