威科米科县（Wicomico County, Maryland）是美国马里兰州东部的一个县，东北邻特拉华州。面积1,035平方公里。根据美国2000年人口普查，共有人口84,644人。县治索尔兹伯里（Salisbury）。

成立于1867年。县名来自威科米科河（印第安语「建房子的地方」的意思）。

Wicomico County (/waɪˈkɒmᵻkoʊ/) is a county located in the southeastern part of the U.S. state of Maryland. As of the 2010 census, the population was 98,733. The county seat is Salisbury. The county was named for the Wicomico River, which in turn derives from Algonquian language words wicko mekee, meaning "a place where houses are built," apparently referring to an Indian town on the banks.