FWR
FWR stands for:
- "Fridericus Wilhelmus Rex" (lat.), In German: "King Friedrich Wilhelm".
Monogram of the Prussian kings Friedrich Wilhelm I (r. 1713–40), II. (1786–97), III. (1797–1840) and IV. (1840–61) from the House of Hohenzollern
- Forum gun law
- Fiata warehouse receipt
- Friedrichsruher Waffenring , a former umbrella organization of student associations
- Wetzlar railway station (DS100 code)
