| Termen/ Term | Nr. apariții/ No. occurrences |
| ISLER C | 1 |
| ISLER C. | 7 |
| ISODA KORYUS AI | 1 |
| ISODA KORYUSAI | 5 |
| ISOPESCU HORTENSIA | 5 |
| ISPAS IOAN THEODOR | 3 |
| ISPAS ION | 2 |
| ISPIR EUGEN | 89 |
| ISPIR MIRCEA | 12 |
| ISRAEL | 2 |
| ISRAEL SILVESTRE | 19 |
| ISRAELS IOSIF | 1 |
| ISRAELS JOSEPH | 1 |
| ISSAIAN | 1 |
| ISSHINSAI BAIRI | 1 |
| ISTA ERNEST | 1 |
| ISTEN C. | 1 |
| ISTOKOVITS KALMAN | 1 |
| ISTRATE ALEXANDRU | 3 |
| ISTRATE VASILE | 10 |
| ISTRATI ALEXANDRU | 16 |
| ISTVANFFY RAJNER GABRIELLA | 1 |
| ISUDA KORYUSAI | 1 |
| ISZLAY MARGIT | 2 |
| ITALIA | 46 |
| ITER | 1 |
| ITOR | 1 |
| IUCA SIMION | 38 |
| IULIA | 7 |
| IULIA ALEXANDRU FILIMON | 2 |
| IULIA DOARBES | 1 |
| IUSA | 1 |
| IUSTER GHEORGHE | 1 |
| IUSTIMOV STEPAN | 1 |
| IVACENCO GHEORGHE | 2 |
| IVAIZOV | 1 |
| IVAN DUMITRU | 1 |
| IVAN MIRCEA | 2 |
| IVAN ZUGRAV | 3 |
| IVAN ZUGRAV DIN BOITA | 1 |
| IVANCENCO GHEORGHE | 233 |
| IVANCENCO GHERGHE | 1 |
| IVANCIU ZUGRAVU | 1 |
| IVANCO | 26 |
| IVANNYI GRUNWALD BELA | 2 |
| IVANOFF VICTOR | 1 |
| IVANOV V.I. | 1 |
| IVANOVICI MIHAIL | 1 |
| IVANY GRUNWALD BELA | 4 |
| IVANYI GRUNWALD BELA | 10 |