Nutrition is a public health issue. Amongst populations of refugees, unmet nutritional needs have been identified. The aim of this study was to evaluate the nutritional status of Syrian refugees living outside the refugee camps in Kayseri, Turkey. Socio-demographic data and anthropometric measurements of the refugees were collected. The relationship between diet quality, which was assessed through the Healthy Eating Index (HEI-2010), and factors (including the duration of time spent outside the refugee camp, income, obesity, and waist circumference) were measured. Four hundred refugees participated in this study. The majority of refugees (77.8%) reported a ‘poor’ diet, with the remaining filling into the ‘needs improvement’ based on HEI-2010 scores. The average consumption of fruits in the study group was 101.9 g per day (g/day), while the average consumption of vegetables was 142.2 g/day. When the relationships were examined between BMI, HEI-2010 score, the time spent as a refugee, and waist circumference, statistically significant relationships were found (p < 0.001). In the linear regression analysis based on these relationships, when the results were adjusted for age and gender factors, it was observed that for every year spent as a refugee, BMI score increased by 0.17 units, and waist circumference increased by 1.14 units (p < 0.05). As a result, this study showed that refugees have low-income-related nutritional risks. In conclusion, ensuring that refugees have access to adequate nutrient-rich food is essential; therefore, monitorization and improvement of nutritional standards for refugees are suggested to be part of the strategies of public health and primary health care.