Search gender: all male female コウエン Japanese Girl Names Variations. 1 names found. gender: all male female Name: koen Katakana: コウエン 22 Kanji: 紅炎 Meaning: 紅Red color. Bright red color. The color of safflower. Pigment made from safflower. A word that refers to women. 炎Flames. To burn up. Burning hot. A disease or condition that causes fever, pain, or swelling. You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > コウエン Japanese Girl Names Variations.