BackgroundThe COVID-19 pandemic has led to the shutdown of society and created sudden and long-lasting changes in teaching practices, forcing many nursing students to study remotely at home. These students’ relatedness with their teachers and peers has been limited and mainly online. Several studies have indicated that students’ emotional states and mental health have been negatively affected by the pandemic, representing a serious challenge for many countries. Because they use only digital tools, online students have perceived a decline in teacher and peer support. Likewise, these students have reported feelings of sadness, loneliness, anxiety, and stress, affecting their learning and competence development.AimsTo investigate the associations between peer support, teacher support, emotional state, and perceived competence in nursing students during the pandemic.MethodsThis cross-sectional study collected quantitative survey data from 329 nursing students at a large university in Norway. Structural equation modeling (SEM) was used to test seven associations among peer support, teacher support, emotional state, and perceived competence.ResultsTeacher support had a significant direct effect on perceived competence, while peer support almost had a significant direct effect. However, the emotional state was directly affected by peer support and had a direct impact on perceived competence. Hence, teacher and peer support is important to nursing students’ perceived competence.ConclusionDuring the COVID-19 pandemic, both peer and teacher support can significantly support students’ competence development. Therefore, students should utilize the support of their teachers and peers in a structured manner to bolster their competence development.