Don't be an idiot Hussein123:

1. There are plenty of Arab Christians. Not all Arabs are Muslims.

2. In Qatar, like most Muslim countries in line with Islamic teachings, Christianity is tolerated for the expat community.

Article 35 of the Qatar constitution:
"All people are equal before the law. There shall be no discrimination on account of sex, origin, language, or religion."

Blue coffee--there are a number of Christian churches here--several of which are built on land donated by the Qatari government. These tend to be more mainstream, however. Doha fellowship and Grace Fellowship tend to be more relaxed in style if that is what you are looking for. A google search for either can provide you details of the locations and services.