Purpose: To compare genetic distribution of fourteen (14) G protein-coupled receptor 30 (GPR30) single-nucleotide polymorphisms (SNPs) in patients with ovarian cancer or benign gynecological disease. Materials and Methods: We examined 117 Korean females with postoperative specimens available for DNA extraction. We used predesigned PCR/Sanger or Sequencing Primer and TaqMan SNP Genotyping Assays for SNP genotyping of the GPR30 gene and performed immunohistochemical staining for assessing GPR30 protein expression. We analyzed linkage disequilibrium (LD) and evaluated differences in genotype and allele frequency between the two groups. Results: We observed no differences in genotype distribution and allele frequency between the two groups. Two LD blocks were determined in both groups. All specimens of both groups revealed intensive staining with a high percentage of positive cells exhibiting GPR30 expression. Conclusions: This study could not demonstrate differences in the genetic distribution of fourteen GPR30 gene polymorphisms in Korean women with ovarian cancer and disease-free controls.