Skullcap or skull cap usually refers to various types of headgear. Specifically it may refer to: Headwear Beanie (seamed cap) Biretta, forming part of some clerical, academic or legal dress Calotte (Belgium), a skullcap worn by students at Catholic universities in Belgium Capeline, worn under civilian hats during early modern periods Cervelliere, a medieval metal helmet Jeep cap Kippah or yarmulke, worn by Jewish men Kufi, worn primarily by men of West African heritage Scrum cap, worn by rugby players Sindhi cap worn by Sindhi people of Pakistan, and others Scrubs (clothing)#Scrub caps, worn by healthcare professionals while performing procedures Taqiyah (cap), worn by some Muslim men Tubeteika, a Central Asian cap Tuque, a knit hat Zucchetto, worn by Catholic clergy Plants Galerina marginata, a poisonous mushroom also known as "deadly skullcap" or "autumn skullcap" Scutellaria, a genus of flowering plants also known as "skullcaps" Scutellaria baicalensis ("Baikal skullcap", "Chinese skullcap"), an herb native to eastern Asia Scutellaria lateriflora ("blue skullcap", "American skullcap", "mad dog skullcap", "side-flowering skullcap"), a perennial herb native to North America See also Calvaria (skull), the top part of the skull