| Abbrev | Name | Spec | Type | Locality |
|---|---|---|---|---|
| YT | YAKTANA[144][1281]; | TR.AE | S | MEX |
| YU,2 | YUMA,DR; | TR.DR | S | USA |
| YUK | YARMUK[1281]; | TR.DR | S | LBN,SYR |
| YWH | YAMHILL | TR.AE | W | USA:OREGON |
| ZA75 | ZARAGOZA-75[114][144][1281]; | TR.AE | S | MEX |
| ZAF | ZAAFRANE[114][144][1281]; | TR.AE | TUN | |
| ZAK | ZEREMAK | TR.DR | ||
| ZB | ZENATI-BOUTEILLE[1281]; | TR.DR | S | DZA |
| ZBZ | ZAMBEZI[144][1281]; | TR.AE | ZIM | |
| ZCT | ZACATECAS-74[114][144][1281]; | TR.AE | S | MEX |
| ZEN | ZENITH,CHE | TR.AE | W | CHE |
| ZGN | ZARGOON-79[144][1281]; | TR.AE | S | PAK |
| ZGR2 | ZAGREPCANKA-2[1281]; | TR.AE | W | YUG |
| ZGRK | ZAGORKA[1281]; | TR.AE | W | YUG |
| ZLD | ZLATNA-DOLINA[133]; | TR.AE | W | YUG |
| ZLKL | ZLATOKLASA[1281]; | TR.AE | W | YUG |
| ZLNG | ZELENGORA[1281]; | TR.AE | W | YUG |
| ZMD80 | ZAMINDAR-80[144][1281]; | TR.AE | S | PAK |
| ZMNK | ZEMUNKA[1281]; | TR.AE | W | YUG |
| ZP | ZOPILOTE[114][144][1281]; | TR.AE | S | ECU |