Purpose: To evaluate the clinical results of Mitchell osteotomy and proximal metatarsal dome osteotomy in hallux valgus deformity. Materials and Methods: From January 1993 to June 2000, 28 cases (17 patients) with hallux valgus deformity who underwent Mitchell osteotomy were categorized as group I, 26 cases (16 patients) who underwent proximal metatarsal dome osteotomy were categorized as group II. We analyzed clinical results according to preoperative and postoperative clinical functional analysis and objective comparison of correction angle between two groups. Results: The average hallux valgus correction in the Mitchell osteotomy group went from $36^{circ}$ to $11^{circ}$, and in the proximal metatarsal dome osteotomy group, the hallux valgus angle was reduced from $32^{circ}$ to $6^{circ}$. The intermetatarsal angle in the Mitchell osteotomy group was corrected from $13^{circ}$ to $9^{circ}$, and in the proximal metatarsal dome osteotomy group the intermetatarsal angle was reduced from $14^{circ}$ to $7^{circ}$. Although, proximal metatarsal dome osteotomy group have shown better correction angle and radiographic results in the correction of hallux valgus angle and intermetatarsal angle but, all patients in the Mitchell osteotomy and proximal metatarsal dome osteotomy groups had no statistically significant differences of clinical functional results between two groups. Conclusion: In our studies, the proximal metatarsal dome osteotomy applied to. hallux valgus deformity was found as a good radiographic results than Mitchell osteotomy, but there were no differences between the two operations in terms of functional satisfaction.