Los Angeles resident Sammie Lee Smith, who describes himself as "talented" but "unknown", filed the lawsuit in LA County Superior Court this week.
Smith alleges that he originally penned the group's most famous hits 'Yellow', 'Clocks' and 'Trouble', and that the four-piece later stole them.
In the lawsuit, Smith also claimed to have written around 4,000 songs since he began writing music in 1976, stating that he has "recorded approximately 100 tapes, each tape containing approximately 40 songs".
The singer has now moved to have the band cease playing the trio of offending songs live and is also demanding a considerable amount of money in damages, TMZ reports.
This is not the first time that Coldplay have made headlines over accusations of plagiarism. US guitarist Joe Satriani filed a lawsuit against them in December 2008 saying that they had imitated his 2004 track 'If I Could Fly' for their worldwide hit 'Viva La Vida'.
Although the case was later dismissed, another artist came forward in the same month to allege that the band stole his concept for their 'Strawberry Swing' video.