The 2018 Pac-12 Conference men's soccer season was the 19th season of men's varsity soccer in the conference.

The season began on August 24, 2018 and concluded on November 9, 2018.

The Cardinal entered the NCAA Tournament as the three-time defending champions, but were eliminated by Akron in the quarterfinals.

Joining Stanford in the tournament were Oregon State, Washington, and UCLA.

The preseason poll will be released in August 2018.