Senjutsu (Japanese: 戦術, loosely translated as "tactics and strategy") is the seventeenth studio album by British heavy metal band Iron Maiden, released on 3 September 2021.

Senjutsu is the band's first studio album in nearly six years, following The Book of Souls (2015), marking the longest gap between two Iron Maiden studio albums. This is also their second studio double album, and their first studio album since Powerslave (1984) to have no songwriting contributions from guitarist Dave Murray in any way, as well as the first since Virtual XI (1998) to feature multiple songs written by bassist Steve Harris alone.

The name of the album is rendered on the right side of the cover art by the actual vertical Japanese spelling of "senjutsu" (戦術), and on the left side by a font reminiscent of Japanese characters. Although it's not a concept album, doom, either inevitable in the near future or having already happened, is a recurring theme throughout.

Senjutsu is one of Iron Maiden's most successful albums, chart-wise, eventually peaking at number one in 23 countries, and marked their first album not to peak that position in the UK charts since A Matter of Life and Death (2006), which peaked at number two. It did, however, top the UK Rock & Metal Singles and Albums Charts. The album also gave the band its highest chart position in the US at number three on Billboard Top 200 Albums Chart and number one on Billboard's Physical Albums Chart.