Cirsium boninense is a species of thistle in the family Asteraceae that is endemic to the Bonin Islands of Tōkyō Metropolis, Japan.

[1] The specific epithet relates to the type locality (Chichijima) in the Bonin Islands.

[1] Cirsium boninense is a perennial plant with white flowers from May to June that grows to a height of 40–150 centimetres (16–59 in) among the grasses and rocks in coastal areas, as well as on the forest floor.

[3][4] Cirsium boninense is classed as Near Threatened on the Ministry of the Environment Red List.

[5][6] According to the Red Data Book Tokyo, though decreasing on Chichijima, numbers are increasing on Muko-jima [ja] and Nakōdo-jima.