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Objectives: The aim of the study was to determine the prevalence of clinical forms in a group of oral lichen planus (OLP) patients and to investigate whether the oral health–related quality of life (OHRQoL) of patients with common clinical OLP forms differs significantly from that of other clinical forms of OLP and healthy patients, respectively. Methods: OHRQoL was assessed using the Romanian version of the short form of the Oral Health Impact Profile (OHIP-14). OLP patients rated the pain they were currently experiencing on a visual analog scale (VAS). Statistics was performed using parametric and non-parametric tests and multiple linear regression. Results: Eighty OLP patients and 80 healthy controls were enrolled. The most prevalent OLP clinical form was keratotic form (n = 39, 48.75%, group 1), followed by atrophic (31.25%), erosive-ulcerative (17.5%), and bullous (2.5%) forms, which were included in group 2 (n = 41). The OHRQoL did not differ significantly between group 1 and the other two groups. A negative social impact was reported on psychological discomfort domain for both OLP groups, as compared with healthy controls. VAS scores were significantly associated with OHIP total scores in group 1 (rho = 0.41, n = 39, p = 0.009, Spearman's correlation coefficient). Within the same group, significantly higher OHIP total scores were recorded in patients lacking academic education (p = 0.0086, Mann-Whitney U test). Conclusions: Overall, the most common clinical OLP form did not impact significantly the OHRQoL of OLP patients. Clinical relevance: Psychological therapy and meeting the educational needs might improve the OHRQoL of patients with common clinical forms of OLP. [ABSTRACT FROM AUTHOR]