NHIS

NHIS may refer to:


 * National Health Insurance Scheme (Ghana)
 * National Health Insurance Scheme (Nigeria)
 * National Health Interview Survey, annual survey by the National Center for Health Statistics in the United States
 * National Homelessness Information System, a system to collect and analyze data on the use of homeless shelters in Canada
 * New Hampshire International Speedway, former name of the New Hampshire Motor Speedway in the United States
 * Nanakuli High and Intermediate School