These three terms are often used interchangeably in casual conversation, but they refer to distinct things. Hijab broadly means modest covering, and most commonly refers to the headscarf that covers a woman's hair, neck, and chest while leaving the face and hands visible; its basis is drawn from verses instructing believing women to draw their coverings over their chests and not display their beauty beyond what is apparent (24:31, 33:59). An abaya is a loose, flowing outer garment — typically a long robe or cloak — worn over regular clothing to conceal the shape of the body; it is a style of dress rather than a specific religious ruling, and equivalents exist across many Muslim cultures under different names, such as jilbab or chador. A niqab is a separate face veil, usually covering the nose and mouth and sometimes leaving only the eyes visible, worn in addition to a hijab or abaya, and represents a stricter, more specific practice. In short: hijab is the general covering including the hair, abaya is a garment style covering the body, and niqab is a face veil — three related but legally and practically distinct concepts.
Q&A · Women in Islam
What is the difference between hijab, niqab, and abaya?
Informational, not a personal fatwa. Consult a qualified scholar for rulings on your situation.