When the studies are examined, it is seen that social media addiction (SMA) increases in adolescents with high social desirability and social appearance anxiety (SAA). For this reason, the aim of this research is to examine SMA in adolescents in terms of SAA and social desirability and to determine at what level social desirability and SAA predict SMA. The research was designed as a descriptive study in the relational survey model. A total of 484 students, 338 of whom were girls (69.8%) and 146 (30.2%) were boys studying at secondary school institutions in the central districts of Hatay province, participated in the study using the convenience sampling method. The Social Media Addiction Scale, the Social Appearance Anxiety Scale, and the Social Desirability Scale were used as data collection tools. The T test and multiple regression analysis were used in the analysis of the data. As a result of the research, it was found that SMA and social desirability do not differ by gender, and it was also seen that SAA differed significantly according to gender, and girls were more concerned about their social appearance. In consequence of the research, it was also found that social desirability and SAA significantly predict SMA.