Reinis

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

As a given name:
 * Reinis Kaudzīte (1839–1920), Latvian schoolteacher and writer
 * Reinis Nitišs (born 1995), Latvian rallycross driver
 * Reinis Reinholds (born 1997), Latvian footballer
 * Reinis Rozītis (born 1982), Latvian bobsledder and Olympic competitor
 * Reinis Zālītis (1943–2005), Latvian footballer

As a surname:
 * Jānis Reinis (born 1960), Latvian actor