South Korea is the 7th largest cement-producing country in the world, accounting for ~ 50 Mtons per year, and only a content of hexavalent chromium in the cement has been self-regulated by the cement association. In this study, the contents of six heavy metals (arsenic, cadmium, copper, hexavalent chromium, mercury, lead) in the 12 ordinary Portland cements (11 Korean products and 1 Japanese product) that have been measured using the EPA 3051 and the KS L 5221 methods. The content ranges of each heavy metals are summarized as the followings: ND-24.7 mg/kg for Cr6+, ND-56.0 mg/kg for As, ND-20.1 mg/kg for Cd, ND-339.7 mg/kg for Cu, ND-3.1381 mg/kg for Hg and ND-434.0 mg/kg for Pb. The results using statistical/graphical approaches such as Pearson correlation, Star plot and Box-and-Whisker plot showed a relatively high correlation (r = 0.652) between copper and lead, meaning that the cement with a high content in copper may also have a high content of lead. Comparisons of star plots showed that the product L had significantly higher loadings for Pb, Hg and Cu, and also product A had high Pb and Cu loadings. Product D showed a high loading of Hg compared to other products. Product U, the white cement, exhibited fairly low levels of heavy metal loadings. By the Box-and-Whisker plots, the distributional contents of hexavalent chromium were ranged mostly below the self-regulating level (i.e., 20 mg/kg). The distribution of Hg content in the HD-2 cement was ranged in greater level than others. Overall, contents or concentration loadings of heavy metals in Japanese cement studied here were found similar to those of Korean cements, and product L was thought to have the most higher loadings of heavy metals, which indicates that product L may possibly have more negative impact to the cement consumer.