Gender identity

Gender identity is a person's internal, deeply held sense of their own gender (or lack thereof). Unlike gender expression, gender identity is not visible to others. An individual's gender identity may or may not align with their birth assignment. Most people, whether cisgender or transgender, have a gender identity of male/man/boy or female/woman/girl. For other people, their gender identity does not fit neatly into one of those two options, such as people who are non-binary or genderqueer.

Examples
The gender identities below are ordered alphabetically rather than by type.