Is there a starter relay for 1994 Chevy S-10 Blazer?

Yes, a 1994 Chevy S-10 Blazer has a starter relay. However, it's often integrated into the underhood fuse box/power distribution center rather than being a separate, stand-alone component like in some older vehicles. You won't find a large, easily identifiable relay labeled "starter." Instead, the relay function is handled by a smaller component within the fuse box. Diagnosing a starting issue will often require checking the fuses and the relay circuits within the fuse box.