Aquilegia ottonis is a perennial flowering plant in the family Ranunculaceae, endemic to Greece.

[1] Aquilegia ottonis grows to 15–20 cm (5.9–7.9 in) in height, with branching stems and white, cream, pale bluish,[2] or blue-purple[3] flowers, the petals having incurved and slightly hooked nectar spurs which are light violet-blue in colour.

It was considered by Arne Strid to comprise three subspecies:[2] In 2009, Aquilegia vulgaris var.

[10][11] Aquilegia ottonis is named after King Otto of Greece,[12] the specific epithet 'ottonis' being the third declension in Latin of 'Otto'.

[13] Aquilegia ottonis is endemic to Greece, in the vicinity of Mount Aroania in the northern Peloponnese and Mounts Giona and Parnassus on the other side of the Gulf of Corinth in central Greece.