Search gender: all male female Tomonagi Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: tomonagi Katakana: トモナギ 0 Kanji: 朝凪 Meaning: 朝Morning. The place where the Son of Heaven conducts politics. A country ruled by the Son of Heaven. A period of time during which a single son of heaven ruled. To meet with the Son of Heaven. Abbreviation for Democratic People's Republic of Korea. 凪Calm (at sea) You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Tomonagi Name Meaning, Kanji Variations.