Data estimates suggest that up to half of all migrants return to the country of origin within 5 years of leaving. Return migration is known to be a boon for the local economy and a catalyst for political reform. However, these effects are conditional on successful reintegration, which is dependent on the preferences of nonmigrants. What causes negative attitudes towards return migration, given its significant potential economic benefits? I argue that nonmigrants are concerned about both the economic and political competition of returnees. Nonmigrants prefer to welcome back migrants who can bring financial capital and employment back home, but will oppose competitors on the job market when unemployment is high. Furthermore, nonmigrants are concerned about the potential role of return migrants as norm entrepreneurs. I test my hypotheses with a conjoint survey experiment conducted in Colombia, as well as an analysis of the 2016 peace referendum.