| Humbert | | HUWM-bert (German), um-BER (French), HUM-bərt (English) | German, French, English (Rare), Ancient Germanic | |
| Hunberct | | - | Ancient Germanic | |
| Hunfrid | | - | Ancient Germanic | |
| Ima | | - | Dutch, Ancient Germanic | |
| Ingeburg | | ING-e-buwrk (German) | German, Ancient Germanic | |
| Ingo | | ING-go (German) | German, Ancient Germanic | |
| Ingomar | | - | German, Ancient Germanic | |
| Ingulf | | - | Ancient Germanic | |
| Isa (3) | | - | Frisian, Ancient Germanic | |
| Isbrand | | - | Ancient Germanic | |
| Ishild | | - | Ancient Germanic (Hypothetical) | |
| Ivo (1) | | EE-vo (German, Dutch, Italian), EE-fo (German), EE-voo (Portuguese) | German, Dutch, Italian, Portuguese, Czech, Ancient Germanic | |
| Jordanes | | - | Ancient Germanic | |
| Judda | | - | Ancient Germanic | |
| Karl | | KAHRL (German, Danish, English, Finnish) | German, Swedish, Norwegian, Danish, English, Finnish, Ancient Germanic | |