Tomonori can be written using many different combinations of kanji characters. Some examples:
- 友則, "friend, rule"
- 友紀, "friend, chronicle"
- 友憲, "friend, constitution"
- 友徳, "friend, benevolence"
- 友範, "friend, pattern"
- 友典, "friend, law code"
- 友法, "friend, method"
- 知則, "know, rule"
- 知紀, "know, chronicle"
- 知憲, "know, constitution"
- 知徳, "know, benevolence"
- 知範, "know, pattern"
- 知典, "know, law code"
- 智則, "intellect, rule"
- 智紀, "intellect, chronicle"
- 智憲, "intellect, constitution"
- 智典, "intellect, law code"
- 共紀, "together, chronicle"
- 共憲, "together, constitution"
- 朋紀, "companion, chronicle"
- 朋憲, "companion, constitution"
- 朝紀, "morning/dynasty, chronicle"
- 朝憲, "morning/dynasty, constitution"
- 朝徳, "morning/dynasty, benevolence"
- 朝典, "morning/dynasty, law code"
The name can also be written in hiragana とものり or katakana トモノリ.