| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 881 | Isolda | German | Rule of ice. | F | |
| 882 | Isolde | German | Variant of Isolda: Ice, rule. | F | |
| 883 | Isole | German | Rule of ice. | F | |
| 884 | Ives | German | Variant of Ivo: Yew. Introduced into Britain during the Norman Conquest. | M | |
| 885 | Ivo | German | Yew. Introduced into Britain during the Norman Conquest. | M | |
| 886 | Izaak | German | Laughter. | M | |
| 887 | Jaecar | German | Hunter. | M | |
| 888 | Jakob | German | German form of Jacob. | M | |
| 889 | Jakoba | German | Feminine form of Jakoh. | F | |
| 890 | Jakobe | German | Feminine form of Jakoh. | F | |
| 891 | Jakobie | German | Feminine form of Jakoh. | F | |
| 892 | Jansen | German | Variant of the Hebrew John 'Jehovah has been gracious; has shown favor.'. | M | |
| 893 | Jantis | German | Sharp spear. | M | |
| 894 | Jarman | German | A German. | M | |
| 895 | Jarmann | German | A German. | M | |
| 896 | Jarvis | German | Spear. Servant. Variant of Gervase. | M | |
| 897 | Jay | German | Swift. | M | |
| 898 | Jaye | German | Swift. | M | |
| 899 | Jeffery | German | Derived from one of three Old German names, meaning district, traveler, or peaceful pledge. Famous bearer: Geoffrey Plantagenet was father to King Henry II; Geoffrey Cbaucer wrote 'The Canterbury Tales'. | M | |
| 900 | Jeffrey | German | Derived from one of three Old German names, meaning district, traveler, or peaceful pledge. Famous bearer: Geoffrey Plantagenet was father to King Henry II; Geoffrey Cbaucer wrote 'The Canterbury Tales'. | M | |