This study examined self-perceived substance and behavioral addictions among Israeli adolescents during the COVID-19 pandemic across different sociodemographic categories. The sample comprised 2,074 adolescents (40% males, 60% females) aged 12-19 years who completed the survey anonymously and with parental consent. We examined what is the prevalence of self-perceived substance and behavioral addictions in this population in the COVID-19 pandemic context. Participants reported self-perceived addictions to social networks (70%), shopping (46%), binge eating (34%), gaming (30%), sex-related behavior (15%), psychoactive substance (31%, including alcohol, tobacco, cannabis, and/or cocaine), and gambling (3%). Moreover, differences were found to be directly related to age, biological sex, religiosity, socioeconomic status, and immigration status. From a lay epidemiological perspective, the current research expands our knowledge about self-perceived addiction among adolescents during the COVID-19 pandemic, offering better understanding of the likelihood probability factors for self-perceived addiction among adolescents and its related negative outcomes, including increased risk factors for later adult life.