| Subject | English | Latvian |
| comp., MS | globally unique identifier | vispārēji unikāls identifikators (A 16-byte value generated from the unique identifier on a device, the current date and time, and a sequence number. It is used to identify a particular device, component, user, or session) |
| comp., MS | Microsoft .NET Passport unique identifier | Microsoft .NET Passport unikālais identifikators (A unique identifier used to represent a Passport account) |
| health., med. | unique device identification | ierīces unikālais identifikators |
| health., med. | unique device identification | UDI |
| health., med. | unique device identifier | ierīces unikālais identifikators |
| health., med. | unique device identifier | UDI |
| comp., MS | unique ID | unikāls ID (A number used as a unique identifier for each Windows Live ID holder. This number is disclosed to residents of the European Union to comply with EU privacy regulations) |
| life.sc., agric., food.ind. | unique identifier | unikāls identifikators |
| comp., MS | unique identifier | unikāls identifikators (A 16-byte value generated from the unique identifier on a device, the current date and time, and a sequence number. It is used to identify a particular device, component, user, or session) |
| comp., MS | unique index | unikāls indekss (An index in which no two rows are permitted to have the same index value, thus prohibiting duplicate index or key values) |
| health., anim.husb. | unique life number | individuālais pastāvīgais identifikācijas numurs |
| comp., MS | unique permission | unikāla atļauja (A permission setting for using a list, library, or site that is different from the permission settings of its parent site) |
| chem. | Universal Unique Identifier | globāli unikāls identifikators |