Arnamul (Scottish Gaelic: Arnamuil) is a stack off the west coast of Mingulay in the Western Isles, Scotland. Although precipitous, sheep were grazed on its relatively flat summit during the human occupation of Mingulay.
Haswell-Smith (2004) states that the name means "erne mound". Mac an Tailleir (2003) does not provide a derivation, although he quotes "Arnabol" as meaning "eagle farm" or "Arne's farm" from the Norse.
Coordinates: 56°48′19″N 7°39′47″W / 56.8052°N 7.6631°W / 56.8052; -7.6631