CZ

1. C/Z Records
2. Campzone (Netherlands)
3. Canal Zone
4. Cane-Zebiak
5. Cardian Zorgverzekeringen
6. Carl Zeiss (optical company)
7. Casa Zimbabwe
8. Casa Zimbabwe
9. Catanzaro (Calabria, Italy)
10. Catanzaro (Italian province)
11. Catanzaro (Italy)
12. Censor Zone
13. Censor Zones
14. central zone
15. Centrale Zorgverzekeraars
16. Centre Zikova
17. Centrum Zamestnanosti (Slovak: Employment Center)
18. Česká Zbrojovka 
19. Ceska Zbrojovka (gun manufacturer in the Czech Republic)
20. Česká Zbrojovka Strakonice
21. Česká Zbrojovka Uhersky Brod
22. Chang Zheng
23. China Southern Airlines Airport Code
24. Chinese zodiac
25. Cibic Zirconia
26. Citizendium
27. City Zone
28. Claudio Zampolli's
29. Clear Zero
30. Clear Zone
31. Clone Zone
32. Coahuila and Zacatecas Railway
33. Coastal Zone
34. Coaster Zombies
35. Combat Zone
36. Comfort Zone
37. Communications Zone
38. Commuting Zone
39. Commuting Zones
40. Condition Zero (video game)
41. Condition Zero Counter-Strike:
42. Construction Zone
43. Contact Zone
44. Control Zone
45. Convergence Zone
46. Convergence Zone (Sonar)]
47. Convergence zones
48. Cooperative Zenith
49. Crash Zone
50. Croatia Zagreb
51. Crown Zellerbach
52. Crows Zero (movie)
53. Crvena Zastava
54. Crvena Zastava (car and weapon factory in Kragujevac, Serbia)
55. Crvena Zvezda (Serbian: Red Star; football club)
56. Cubic Zirconia
57. Cyber Zone
58. Czech Republic
59. Czech Republic
60. Czechoslovakia (now Czech Republic)
61. Czochralski (SI crystal growing technique)