Cholesteryl hexanoate $(C_{33}H_{56}O_2)$, is monoclinic, space group $P2_1$, with a = 12.162(3), b = 9.314(3), c = 13.643(5) ${AA}$, ${eta}$ = $93. 55{circ}(3)$ and two molecules per unit cell. The atomic coordinates from cholesteryl octanoate were used in an initial trial structure using X-ray intensities(Mo $K{alpha}$ radiation) measured by a diffractometer at room temperature and $-75{circ}C$. Structure refinement by block-diagonal least squares gave R = 0.129 and 0.105 for room and low temperature experiments respectively. The molecules are arranged in monolayers with their long axes antiparallel and severely tilted. There is a close packing of cholesteryl groups within the monolayers. The crystal structures is very similar to those of cholesteryl octanoate and cholesteryl oleate.