It comes following chaotic scenes during a 2-2 draw between Bournemouth and the Tyneside club, where former Cherries winger Matt Richie netted a late equaliser.
Five men arrested after the match in March appeared before Poole Magistrates’ Court.
The group each admitted to ‘entering the playing area without lawful authority or lawful excuse’ on the date of the match – March 16th.
Fines ranged from £80 up to £135 for the five fans who attended the match.
All five were ordered to pay costs of £85 and a victim surcharge of £30.
Police action was necessary after stewards restrained the pitch invaders, following Ritchie’s dramatic late volley against his old club.
Pitch invasions have been topical of late, with West Ham United fined £100,000 by the Football Association over their failure to keep fans from entering the pitch last March.
A man was also sentenced to 14 weeks in prison in March, after attacking Aston Villa’s Jack Grealish on the pitch during the Second City Derby between Villa and Birmingham.
Newcastle United FC have released a statement regarding the pitch invasions at Bournemouth.
“If any individuals are found guilty of committing criminal acts, we will review their individual case before determining if any further club-related punishment is appropriate.”
“We would like to take this opportunity to thank the vast majority of Newcastle United fans for their support and their exemplary behaviour while following the team both home and away.”
AFC Bournemouth have not commented on the investigation or the sentencing.