W41

W41 may refer to:
 * W41 (nuclear warhead)
 * Crisfield Municipal Airport, in Somerset County, Maryland
 * Great icosahedron
 * Kita-Kembuchi Station, in Hokkaido, Japan
 * Nissan Civilian (W41), a minibus
 * Noongar language
 * W41, a version of the Oldsmobile Quad 4 engine