| Champ: | Ivan Lendl |
| Runner: |  Jeff Turpin |
| Score: | 6–3, 6–4 |
| Before Name: | Wimbledon Championships – Boys' singles |
| After Name: | Wimbledon Championships – Boys' singles |
| Type: | grand slam |
See main article: 1978 Wimbledon Championships. Ivan Lendl defeated Jeff Turpin in the final, 6–3, 6–4 to win the boys' singles tennis title at the 1978 Wimbledon Championships.[1]
See also: 1 and 1. Ivan Lendl (champion)
See also: 2 and 4. 
Per Hjertquist (semifinals)
See also: 3 and 3. 
Ramesh Krishnan (third round)
See also: 4 and 2. Stefan Simonsson (quarterfinals)
See also: 5 and 2. Robbie Venter (semifinals)
See also: 6 and 3. 
Bill Gilmour Jr. (first round)
See also: 7 and 4. John Corse (quarterfinals)
See also: 8. Blaine Willenborg (quarterfinals)