| R Ideker (Birmingham, US) | P1229, V73 |
| MM Ieven (Antwerpen, BE) | V1092 |
| K Ikeda (Boulder, US) | V497 |
| S Illien (Bonn) | V249 |
| T Illmer (Dresden) | V1249 |
| H Ince (Rostock) | P883 |
| H Ince (Rostock) | P102 |
| C Irmer (Lübeck) | V228 |
| D Isbrandt (Hamburg) | P387 |
| J Isner (Boston, US) | V253, V471 |
| CW Israel (Frankfurt) | P669, V1445, V1447 |
| CW Israel (Frankfurt/Main) | S324 |
| CW Israel (Frankfurt/Main) | P1236, V1116, V270 |
| W Ito (Hamburg) | V470 |
| T-H Ittel (Stralsund) | P110 |