Believing one is a world-famous celebrity, a royal figure, or an influential political leader (e.g., the President).

Grandiose delusions are not a standalone illness but are symptoms of underlying psychiatric or neurological conditions:

Frequently includes religious, supernatural, or science-fictional elements. Common Subtypes and Examples

Delusions of grandeur can manifest in several distinct ways:

(also called grandiose delusions or GDs) are fixed, false beliefs characterized by an extraordinary sense of self-importance, power, or identity. Unlike ordinary high self-esteem or ambition, these beliefs persist despite clear contradictory evidence and often signify a major disconnection from reality. Core Characteristics

Believing one possesses magical powers, such as mind-reading, immortality, or the ability to fly.

Beliefs often involve possessing unique talents, immense wealth, or a "special mission".