The spotted codlet, MacClelland's unicorn-cod, or unicorn cod, Bregmaceros mcclellandi, is a small, deepwater codlet fish found in the western Indian Ocean to eastern Thailand. It occurs from the surface to depths of , and it reaches up to in standard length. This species is of commercial importance to local fisheries.
The fish's name is based on a manuscript name by Danish naturalist Theodor Edvard Cantor (1809âÂÂ1860), in honor of his friend John McClelland (1805âÂÂ1875), a physician and ichthyologist, "whose researches in the Biology and Geology of India are well known".