Jachthaven Portofino is a marina located at Kasteellaan 7 in Eijsden, in the Dutch province of Limburg. The facility includes an on-site restaurant, Bie Portofino, and is managed by a harbourmaster reachable by phone.

Water levels at the marina are monitored relative to NAP (Normaal Amsterdams Peil); parts of the grounds can flood when levels rise significantly above that baseline, as occurred during the high-water event of July 2021.

The marina's website provides mooring tariffs, regulations, general conditions, and a site map for visiting boaters.