New Hampshire Interscholastic Athletic Association
| Abbreviation | NHIAA | 
|---|---|
| Formation | 1947 | 
| Type | Volunteer; NPO | 
| Legal status | Association | 
| Purpose | Athletic/Educational | 
| Headquarters | 251 Clinton St. Concord, NH 03301  | 
Region served   | New Hampshire | 
Official language   | English | 
Executive Director  | Jeffrey Collins | 
| Affiliations | National Federation of State High School Associations | 
| Website | nhiaa | 
The New Hampshire Interscholastic Athletic Association (NHIAA) is the governing body for sports competitions among all public and some private high schools in New Hampshire. It is a member of the National Federation of State High School Associations.