Pagham have been given a prize draw in the second qualifying round of the FA Vase.
The Lions could get their biggest ever home attendance for the match on September 20 after the draw gave them a potential tie against high-profile AFC Wimbledon.
Pagham will be hoping the London side first beat Combined Counties Premier League rivals Westfield in the first qualifying round two weeks earlier to set up the visit to Nyetimber Lane.
AFC Wimbledon were only formed last year by devastated supporters of Nationwide League Wimbeldon after the go-ahead was given for the Dons to relocate to Milton Keynes.
Pagham's record crowd is 1,200 for a match against Bognor in 1971, but that could be easily beaten if AFC Wimbledon visit the County League club in September.
"Their following is massive and they have about 2,000 people with them on away trips," said Pagham chairman Graham Peach.
"We will have to wait and see if they beat Westfield, but having AFC Wimbledon here would be a bumper day for us. We will look forward to it.
"We hope we can progress in the cup competitions, but it is a nice bonus for us to draw AFC Wimbledon."
Peach said talks would take place about where the match would be played, but he hoped Nyetimber Lane would be able to cope with holding the tie.