Nicholas Anthony Vespi (born October 10, 1995) is an American professional baseball pitcher in the Philadelphia Phillies organization.

He split the 2016 season with the GCL Orioles and Low-A Aberdeen IronBirds, registering a 5-1 record and 1.88 ERA with 41 strikeouts in 52+2⁄3 innings pitched across 13 games (10 starts).

In 2017, Vespi split time between Aberdeen and the Single-A Delmarva Shorebirds, posting a 4-3 record and 4.41 ERA with 69 strikeouts in 49 innings of work.

[4] Vespi returned to action in 2021, recording a 4.19 ERA with 51 strikeouts in 30 relief outings for Norfolk and the Double–A Bowie Baysox.

[7] He made 25 total appearances for the Orioles in 2022, logging a 5-0 record 4.10 ERA with 28 strikeouts across 26.1 innings pitched.