Immigration law in the United States generally includes the rights and obligations of persons who are not U.S. citizens to temporarily visit or more permanently reside in the U.S.—and for federal and state governments to enforce immigration laws regarding visitors and residents.

Most immigration law consists of federal statutes and regulations—but many state laws impact both legal and illegal immigrants—including employment checks, E-Verify, law enforcement, driver's license requirements, public benefits restrictions, and more.

In Wyoming, as in all states, immigration law is primarily governed by federal statutes and regulations, as the authority to regulate immigration is a federal power. This includes laws pertaining to visas, green cards, asylum, deportation, and citizenship. State laws, however, can have an impact on immigrants as well. Wyoming does not have as many immigration-related state laws as some other states, but it does have regulations that affect immigrants. For example, employers in Wyoming are subject to federal employment eligibility verification requirements and may use the E-Verify system to check the work authorization status of employees. Law enforcement in Wyoming may also cooperate with federal immigration authorities in certain circumstances. Additionally, Wyoming has requirements for driver's licenses and state identification cards that could impact immigrants. Public benefits in Wyoming are generally restricted to lawful residents, and there may be state-specific restrictions on access to certain state-funded programs for those without legal immigration status.