Ndia

Ndia or NDIA may refer to:

• Ndia Constituency, Kirinyaga District, Central Province, Kenya
• Alternative name for the Southern Kirinyaga dialect of the Kikuyu language
• National Defense Industrial Association, an American trade association
• National Digital Inclusion Alliance, an American non-profit organization
• Hamad International Airport, an airport in Qatar, formerly known as New Doha International Airport
• N.D.Ia., an abbreviation used for the United States District Court for the Northern District of Iowa