Jim Matheos is an American guitarist and the primary songwriter for the progressive metal band Fates Warning, in which he has been the only consistent member since the group's beginning. Matheos also plays in OSI alongside Kevin Moore, as well as making other appearances with many different bands and artists.

Night on Bröcken is the debut studio album by the American progressive metal band Fates Warning, released in September 1984 through Metal Blade Records.