The objective of this study was to compare the visual oral health literacy (VOHL) level before and after oral health education among 217 adolescent subjects who were recruited from two secondary schools in Kuala Lumpur. For the VOHL, the students were asked to draw their upper and lower anterior teeth as seen in the hand-held mirror, twice. The VOHL test was conducted once at the start of the session and repeated after oral health education (OHE) was given. Tooth and gingival scores were calculated, and changes in the scores before and after OHE were determined. Statistical analysis was performed using SPSS version 22 with a value of significance set at p < 0.05. For VOHL, at baseline, the students had a low score for both gingival, and tooth scores with the gingival score being significantly lower. Upper tooth and gingival scores were higher than lower tooth and gingival scores. Comparison of scores before and after OHE showed that both tooth and gingival scores improved significantly after OHE. VOHL allows evaluation of students' oral health literacy both visually and quantitatively. It should be considered for future use in any multilingual nation to increase oral health literacy among adolescents in the country. � 2019 Journal of International Dental and Medical Research.