Children consider nationality to be a core aspect of a person’s identity (Hussak & Cimpian, 2019). In previous research, we have found that children deem nationality to be a more influential social marker than gender. Additionally, we have observed that children hold non-essentialist beliefs about national identity, meaning they understand that nationality is not an inherent and stable part of a person’s identity. In this present study, we aim to understand how immigration shifts children's perceptions of national identity, and if they can consider an immigrant to have a dual national identity. Dual national identity refers to the idea that an immigrant can assimilate to a new host country, while still maintaining traits from their origin country. Children aged 4-11 years old (N = 215) participated in a study with 6 trials where they were asked to sort three characters (Non-immigrant, Immigrant, Vacationer). For each trial, they were introduced to a new character and to the preferences of people from two fictional countries. They were asked if each character would prefer to do activities like people from their heritage country, host country, both, or neither. When a child says that an immigrant would be like people from both their heritage country and their host country, this indicates that they understand immigrants can hold a dual national identity. Preliminary findings suggest that children do believe that immigrants can hold a dual national identity, whereas they think that non-immigrants will only be like people from their heritage country. This study provides us with opportunities to conduct further research on how immigration affects childrens’ views on national identity as a flexible social category.