The theme of this thesis is women's identity and a process of its development and formation. We specify theoretical basis through which it is possible to approach this subject. The theoretical part also pays attention to the process of biological differentiation of gender, to the question of a gender socialization and describes basic theoretical conceptions of development and formation of a sexual and gender identity which can be possibly found within the frame of psychology. The qualitative research enables to look at women's identity by the view of women themselves. Specific topics of an everyday lived experience appear from the analysis of interviews and these topics could be investigated deeper.