The Workshop on ns-3 (WNS3) was held in the Washington, D.C. area on June 28-29, 2023, as part of a broader annual meeting for ns-3 including tutorials and talks, and the annual meeting of the ns-3 Consortium. The annual meeting ran for five days, June 26-30, with the WNS3 days being held on June 28-29. The meeting style in 2023 was hybrid, with in-person and virtual attendance.

The objective of the annual meeting is to gather ns-3 users and developers, together with networking simulation practitioners and users, and developers of other network simulation tools, to learn about advances pertaining to the ns-3 simulator.

Proceedings for published workshop papers are published in the ACM ICPS series.

Some accommodations for remote presentation of papers was provided, but most accepted papers had at least one author attend in-person.