Objectives Evaluate the readability of online English and Spanish cleft lip and palate patient education materials. Design Review of free online materials Setting English and Spanish language online patient education materials on cleft lip and palate were collected from American Cleft Palate-Craniofacial Association (ACPA) approved teams. Participants American Cleft Palate-Craniofacial Association (ACPA) approved teams Interventions English materials were analyzed using the Flesch-Kincaid, SMOG, and Coleman-Liau readability calculators. Spanish materials were analyzed using the Fry Graph, Fernandez Huerta, and INFLESZ calculators. A one-way analysis of variance (ANOVA) was used to test for variability between the readability tools. Outcomes Readability levels were examined for both sets of materials. Results 171 (90.5%) teams provided English language materials online, with an average readability score calculated as 10.5 ± 2.9 (10th-11th grade). A total of 44 (23.2%) teams listed Spanish language materials online, with average readability score of 7.9 ± 1.2 (8th grade). ANOVA demonstrated statistically significant variability between the readability assessment tools ( P < .01). Conclusion Online cleft lip and palate patient education material provided by ACPA craniofacial teams were more available in English than in Spanish. Both sets of materials demonstrated readability levels above the recommended 6th-7th grade. Refining readability is associated with lowered healthcare costs and increased patient satisfaction.