The 2023 Stockholm Open (also known as the BNP Paribas Nordic Open for sponsorship reasons) was a professional men's tennis tournament played on indoor hard courts.

It was the 54th edition of the tournament, and part of the ATP Tour 250 series of the 2023 ATP Tour.

It took place at the Kungliga tennishallen in Stockholm, Sweden from 16 to 22 October 2023.

[2] The following players received wildcards into the singles main draw: The following player received entry using a protected ranking: The following players received entry from the qualifying draw: The following player received entry as a lucky loser: The following pairs received wildcards into the doubles main draw: