Magnapinna talismani is a species of bigfin squid known only from a single damaged specimen.
It is characterised by small white nodules present on the ventral surface of its fins.
The holotype of M. talismani is a specimen of 61-millimetre (2.4 in) mantle length (ML) collected in the northern Atlantic Ocean, south of the Azores, at 34°46′N 36°11′W / 34.767°N 36.183°W / 34.767; -36.183.
B. M. talismani was originally placed in the genus Chiroteuthopsis, which is now considered a junior synonym of Mastigoteuthis.
Mastigoteuthis talismani was subsequently placed in the genus Magnapinna by Michael Vecchione and Richard E. Young in 2006.