Probably. Apache web server is the most popular one used in the world.
If you have purchased a shared hosting plan, or a preconfigured VPS, you almost certainly have Apache installed already.
If you have a dedicated server, or certain types of minimally configured cloud hosting, you may need to install Apache yourself.
Usually (but not always), if a hosting provider offers something other than Apache (such as Nginx), they will make it a major selling point in their advertising, and you would have noticed.
