1978 Wimbledon Championships – Men's singles qualifying

Players who neither had high enough rankings nor received wild cards to enter the main draw of the annual Wimbledon Tennis Championships participated in a qualifying tournament held one week before the event. Several players withdrew from the main draw after qualifying had commenced, leading to the highest ranked players who lost in the final qualifying round to be entered into the main draw as lucky losers.

Seeds
• # Stanislav Birner (qualifying competition, lucky loser)

• # 🇺🇸 Bruce Manson (qualifying competition, lucky loser)

• # 🇦🇺 John Marks (qualified)

• # 🇺🇸 Peter Pearson (first round)

• # 🇦🇺 Rod Frawley (qualified)

• # 🇺🇸 Erik van Dillen (qualified)

• # 🇺🇸 Johan Kriek (qualified)

• # 🇸🇪 Douglas Palm (qualifying competition, lucky loser)

• # 🇦🇺 David Carter (qualifying competition, lucky loser)

• # 🇺🇸 Mike Machette (qualifying competition, lucky loser)

• # 🇦🇺 Chris Kachel (qualified)

• # 🇦🇺 Bob Carmichael (qualified)

• # Álvaro Fillol (qualified)

• # 🇻🇪 Jorge Andrew (second round)

• # 🇮🇳 Sashi Menon (qualifying competition)

• # 🇦🇺 Mark Edmondson (qualified)

• # 🇺🇸 John Austin (first round)

• # 🇦🇹 Peter Feigl (qualifying competition)

• # 🇺🇸 Fred McNair (qualified)

• # 🇺🇸 Charlie Pasarell (first round)

• # 🇸🇪 Tenny Svensson (first round)

• # David Schneider (qualified)

• # 🇬🇧 Michael Wayman (qualified)

• # 🇦🇺 Dale Collings (qualified)

• # 🇺🇸 Armistead Neely (second round)

• # 🇸🇪 Jan Norbäck (second round)

• # 🇺🇸 Joel Bailey (qualified)

• # 🇦🇺 Warren Maher (qualifying competition)

• # 🇦🇺 Brad Drewett (qualifying competition)

• # 🇺🇸 William Lofgren (qualifying competition)

• # 🇺🇸 Scott Carnahan (first round)

• # 🇺🇸 Chico Hagey (qualifying competition)

Qualifiers
• # 🇬🇧 Mark Farrell

• # Jan Šimbera

• # 🇦🇺 John Marks

• # 🇮🇳 Jayakumar Royappa

• # 🇦🇺 Rod Frawley

• # 🇺🇸 Erik van Dillen

• # 🇺🇸 Johan Kriek

• # 🇺🇸 Fred McNair

• # 🇬🇧 Michael Wayman

• # David Schneider

• # 🇦🇺 Chris Kachel

• # 🇦🇺 Bob Carmichael

• # Álvaro Fillol

• # 🇦🇺 Dale Collings

• # 🇺🇸 Joel Bailey

• # 🇦🇺 Mark Edmondson

Lucky losers
• # 🇸🇪 Douglas Palm

• # 🇺🇸 Bruce Manson

• # Stanislav Birner

• # 🇺🇸 Mike Machette

• # 🇦🇺 David Carter