No. A load Balancer is a server placement used to distribute website traffic. Multiple servers are part of a load balancer, and they can handle a couple of requests at a time. It is the front of the original server and works like a traffic distributor.
Load balancers make sure that the main website server is not too burdened and disperse the traffic on all the corresponding servers. Reverse Proxy can also do the same job but with one server and with one kind of request type only.