McAlester suna ne da ya dace wanda yawanci yana nufin wani birni a kudu maso gabashin jihar Oklahoma ta Amurka. Ita ce kujerar gundumar Pittsburg County kuma tana da yawan jama'a kusan 18,000. An ba wa garin suna bayan James Jackson McAlester, farkon wanda ya kafa wurin kasuwanci a yankin a cikin 1860s. Sunan "McAlester" an yi imanin ya samo asali ne daga sunan sunan Irish "McAlister" ko "Mac Alasdair," ma'ana "dan Alasdair."