The influx of Rohingya refugees into Bangladesh has intensified food insecurity among nearby host communities. This study analyzed data from World Vision’s Emergency Food Security Program (2019–2021) involving 660 host households in Cox’s Bazar to assess the impact of different interventions. Findings revealed that households relying on food aid or cash transfers had worse food security outcomes, while those engaged in farming experienced lower food insecurity. The results suggest that livelihood and farming support may be more effective than direct aid in promoting long-term food security among host populations.