Ivan Aguéli (born John Gustaf Agelii) (May 24, 1869 - October 1, 1917) also named Sheikh 'Abd al-Hādī 'Aqīlī (Arabic: شيخ عبد الهادی عقیلی) upon his conversion to Islam, was a Swedish wandering Sufi, painter and author. As a devotee of Ibn Arabi, his metaphysics applied to the study of Islamic esoterism and its similarities with other esoteric traditions of the world. He was the initiator of René Guénon into Sufism and founder of the Parisian al Akbariyya society. His art was a unique form of miniature Post-Impressionism where he used the blend of colours to create a sense of depth and distance. His unique style of art made him one of the founders of the Swedish contemporary art movement.