Before coming to Lebanon, we advise you to check your country’s visa and registration requirements. For the official policy please go to the Lebanese General Security website.
Visitors can remain in Lebanon for a total of three months. A tourist visa is valid for 3 months, without requiring an extension. For more and detailed information on registration and visa, see http://www.living-lebanon.com/registration-and-visa-lebanon.html. If you are staying longer than 3 months you are required to leave the country after 3 months.
You can apply for 3-month single entry visa or a 6-month multiple entry tourist visa in any country with a Lebanese embassy. This will take a couple months to process, and costs around $50.