Brahms Inlet () is an ice-filled inlet, 25 miles (40 km) long and 6 miles (10 km) wide, indenting the north side of Beethoven Peninsula on Alexander Island between Harris Peninsula and Derocher Peninsula. It was observed from the air and first mapped by the Ronne Antarctic Research Expedition (RARE), 1947–48, and re-mapped from the RARE air photos by Derek J.H. Searle of the Falkland Islands Dependencies Survey in 1960. It was named by the UK Antarctic Place-Names Committee after Johannes Brahms, the German composer.