Isolona is a genus of flowering plants in the family Annonaceae. There are 21 species native to Africa. They occur in humid habitat types.

Species include:

• Isolona campanulata Engler & Diels
• Isolona capuronii Cavaco & Keraudren
• Isolona cauliflora Verdc.
• Isolona congolana (De Wild. & T. Durand) Engl. & Diels
• Isolona cooperi Hutchinson & Dalziel
• Isolona deightonii Keay
• Isolona dewevrei Engl. & Diels.
• Isolona ghesquierei Cavaco & Keraudren
• Isolona heinsenii Engl. & Diels
• Isolona hexaloba Engler
• Isolona humbertiana Ghesq. ex Cavaco & Keraudr.
• Isolona lebrunii Boutique
• Isolona letestui Pellegr.
• Isolona linearis
• Isolona madagascariensis (A.DC.) Engl.
• Isolona maitlandii Keay
• Isolona perrieri Diels
• Isolona pilosa Diels
• Isolona pleurocarpa Diels
• Isolona thonneri (De Wild. & T.Durand) Engl. & Diels
• Isolona zenkeri Engl.

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