Abstract: A collapsible fish spear is disclosed for use in underwater sports fishing. The spear includes a number of lengths of hollow rod which are telescopically interlocked together to form a single rod. The forward length of rod includes a removable projecting spear unit for spearing fish. The lengths are connected together by an elastic band which is secured at one end to the forward length and at the opposite end to the terminal length of rod, the band tensioned to hold the lengths in interlocked relation. To collapse the spear the lengths are pulled apart and positioned in parallel side-by-side relation. An elastic loop is secured at its respective ends to the terminal length of rod. Tensioning of the elastic loop and release thereof by the holder of the spear propels the spear through the water to spear a fish.