Exposure to allergens could be life-threatening for people with food allergies. Restaurants and cafes are challenging environments for accommodating food allergies. This study aimed to measure King Saud University female students’ awareness about food allergens on restaurants’ and cafes’ menus. This cross-sectional study was conducted on 379 students aged 18 years and above. A paper-based questionnaire was used, which comprised 16 questions related to the definition of food allergies, food allergens, and food allergy symptoms; the definition and prevention of cross-contact of food allergies; emergency treatment procedures for food allergies; strategies for the prevention of food allergy reactions; customer expectations towards restaurants; and preventive measures taken for food allergies. The results indicate that the overall average score of food allergen awareness was 10.90, which falls in the higher range. Furthermore, female students in the age groups of 23 to 27 years and 33 to 37 years had higher levels of awareness than female students in the age group of 18 to 22 years. The results also showed that the level of awareness among science college and health college students was statistically significantly higher (p< 0.05) than that among humanities college students. Post-graduate students also showed a higher level of awareness of food allergens than bachelor’s students. These findings also indicate that listing all allergens in the restaurants and cafes’ menus statistically significantly (p< 0.05) increased the level of awareness of female students about food allergens on restaurants’ and cafes’ menus, compared to restaurants and cafes that do not list all allergens on their menus. In general, female students at King Saud University showed a high level of awareness about food allergies on restaurants’ and cafes’ menus. The study recommends assessing the impact of awareness of female students with and without food allergies on their practices and behaviors.