The LSAT is taken by students planning to attend law schools in the US and Canada, but the test is also administered internationally, as the LSAT spreads across the globe. (Read this blog post we wrote about the LSAT abroad.)
You can take the LSAT in just one location in the Czech Republic: in Prague at the Fulbright Commission.
In Prague, the test is offered for the September/October, December, and February LSAT administrations. You cannot take the June LSAT there.
If you're looking to take the LSAT internationally, you should register for the test as soon as possible, as testing center space is limited. You can register online through your LSAC.org account or by calling LSAC at 215.968.1001.
In the Czech Republic, the LSAT is a relatively new phenomenon, and as such there are not many on-the-ground LSAT preparation options. However, there are still many high-quality LSAT preparation options available to LSAT takers there, including PowerScore's Live Online LSAT courses, On Demand LSAT courses, self-study using LSAT preparation books like the LSAT Bibles, and online LSAT tutoring.
Photo Credit: "Prague, Czech Republic (explored)" by Thomas Depenbusch