CR or Cr may refer to:

• Celtic Reconstructionism
• Chiltern Railways
• China Railway, or China Railway Corporation, a national corporation in People's Republic of China
• Choose Responsibility
• College of the Redwoods
• College Republicans
• Community of the Resurrection, an Anglican religious order
• Congregation of the Resurrection, a Catholic religious order
• Consolidated Rail Corporation (Conrail)
• Czech Radio

Commercial Radio Hong Kong

.cr is the country code top-level domain (ccTLD) of Costa Rica.

The Czech Republic ( ; ) is a landlocked country in Central Europe bordered by Germany to the west, Austria to the south, Slovakia to the southeast and Poland to the northeast. The capital and largest city, Prague, has over 1.2 million residents. The Czech Republic includes the historical territories of Bohemia, Moravia, and Czech Silesia.