Reinis

Reinis is a Latvian masculine given name and surname and may refer to:
As a given name:

Reinis Kaudzīte, Latvian schoolteacher and writer
Reinis Nitišs, Latvian rallycross driver
Reinis Pozņaks, Latvian politician
Reinis Reinholds, Latvian footballer
Reinis Rozītis, Latvian bobsledder and Olympic competitor
Reinis Uzulnieks, Latvian politician
Reinis Zālītis, Latvian footballer
Reinis Zusters, Latvian-born Australian artist

As a surname:

Jānis Reinis, Latvian actor