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• Ilyas - Strength of God, Arabic
• Isaac - He will laugh, Hebrew

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• Idil
• Ifigeneia - Born strong, Greek
• Ilva - Wolf, Latvian
• Imogene
• Iphigenia - Born strong, Greek
• Iphigénie
• Isaura - From Isauria, Spanish
• Iseult
• Isis
• Ismene - Knowledge, Greek
• Isobel - God is my oath, English / Scottish
• Isolde - She who is gazed upon, German
• Iuno