| Ingolf | | ING-gawlf (German) | Swedish, Norwegian, Danish, German | |
| Ingomar | | - | German, Ancient Germanic | |
| Ingrid | | ING-rid (Swedish), ING-ree (Norwegian), ING-grit (German) | Swedish, Norwegian, Danish, German | |
| Ingulf | | - | Ancient Germanic | |
| Inka | | EENG-kah (Finnish), ING-kah (German) | Frisian, Finnish, German | |
| Irene | | ie-REEN (English), ie-REE-nee (English), ee-RE-ne (Italian), EE-re-ne (Finnish), ee-RE-nu (German) | English, Italian, Spanish, Portuguese, Swedish, Norwegian, Danish, Finnish, German, Ancient Greek (L | |
| Iris | | IE-ris (English), EE-ris (German, Dutch), EE-rees (Finnish, Spanish) | Greek Mythology, English, German, Dutch, Swedish, Norwegian, Danish, Finnish, French, Spanish | |
| Irma | | EER-mah (German, Finnish), UR-mə (English) | German, English, Dutch, Finnish, Spanish, Italian, Georgian, Lithuanian, Hungarian (Rare), Ancient G | |
| Irmentrud | | EER-men-troot | German (Archaic) | |
| Irmgard | | EERM-gahrt | German | |
| Irmhild | | EERM-hilt | German | |
| Irmingard | | EER-min-gahrt | German | |
| Irmtraud | | EERM-trowt | German | |
| Irmtrud | | EERM-troot | German | |
| Isa (2) | | EE-sah: (Dutch) | German, Dutch, Italian, Spanish | |