Dillan

Irish
"loyal"

Dillan Origin and Meaning

The name Dillan is a girl's name.

Dillan as a feminine name represents a gender-crossing trend where traditionally male names are adopted for girls, often with modified spellings. Originally an Irish surname derived from 'Diolún,' meaning 'faithful' or 'loyal,' Dillan is more commonly used for boys (usually spelled Dylan). The feminine usage gained modest traction in the 1990s and 2000s as gender boundaries in naming became more fluid. Parents choosing Dillan for a daughter might appreciate its strong sound combined with its lesser use for girls, creating a distinctive identity. The name carries connotations of faithfulness and determination while maintaining a contemporary feel. Though uncommon for girls, it fits alongside other surname-style names that have crossed gender lines.