Cyclobutanol is an organic compound with the chemical formula C4H8O; it is defined as a cyclobutyl group with a hydroxyl group pendant and thus a cycloalkanol.

Physically, it is a yellowish clear liquid[1] that crystallizes orthorhombically at low-temperatures.

[2] Cyclobutylamine's Demjanov rearrangement with nitrous acid gives cyclobutanol,[3] and cyclopropylmethanol rearranges in strong acid to the same.

[4] Metal hydrides reduce cyclobutanone to cyclobutanol;[5] conversely, cyclobutanol oxidation is a salt-free route to cyclobutanone.

[4] This article about an organic compound is a stub.