Dillion
Meaning
"faithful, loyal"
Origin: Old Irish Dallán
Cultural Roots
Quick Stats
- Popularity Rank
- #5,680
- Total SSA Count
- 17
- Syllables
- 3
- Formality
- Moderate
- Nicknames
- Dil, Dilly
Baby Name Comparison — 2026
"faithful, loyal"
Origin: Old Irish Dallán
"son of the servant of Saint John"
Origin: Scottish Gaelic Mac Gille Eathain
Mcclain is more popular, ranked #5676 vs #5680 for Dillion.
Historical US popularity rank — lower number means more popular.
Historical trend data not available for this comparison.
Names that pair well as siblings.
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Mcclain is more popular, ranked #5676 compared to Dillion at #5680 in the United States.
Dillion means "faithful, loyal" (Old Irish Dallán origin). Mcclain means "son of the servant of Saint John" (Scottish Gaelic Mac Gille Eathain origin).
Dillion is primarily a boy name. Mcclain is primarily a boy name.