The oblique arytenoid is bilaterally paired intrinsic muscle of the larynx.

It is superficial to the transverse arytenoid; the oblique and transverse arytenoids are often considered two parts of a single muscle - the interarytenoid muscle (which is then said to have an oblique part and a transverse part).

[1] Each oblique arytenoid muscle attaches to the posterior aspect of the muscular process of arytenoid cartilage of one side, and to the apex of the arytenoid cartilage of the opposite side; the two oblique arytenoid muscles thus cross each other obliquely.

[1] The muscle receives motor innervation from the recurrent laryngeal nerve (a branch of the vagus nerve (CN X))[1] (as is the case with all intrinsic muscles of the larynx except the cricothyroid muscle).

[citation needed] Together with the aryepiglottic muscles, the two oblique arytenoid muscles function as a sphincter of the laryngeal inlet by adducting aryepiglottic folds, and approximating the arytenoid cartilages and the tubercle of epiglottis.