California State Route 241

State Route 241 (SR 241) is one of the two state highways in California that are controlled-accesstoll roads for their entire lengths (the other being SR 261, both in Orange County and operated by the Transportation Corridor Agencies). SR 241's southern half from near Las Flores to near Irvine is the Foothill Transportation Corridor, while its northern half to SR 91 on the Anaheim–Yorba Linda border forms part of the Eastern Transportation Corridor system with SR 133 and SR 261.

SR 241 is the most elevated highway in Orange County and provides scenic views of both the Santa Ana Mountains and the cities below, passing through 12 different cities and regions along its length.

Legislatively, SR 241 is defined to run south to I-5 at San Onofre State Beach on the border with San Diego County. A plan to construct this portion was opposed due to environmental concerns. The county maintains the toll-free Los Patrones Parkway that extends the right-of-way south to Rancho Mission Viejo, but local officials do not intend to hand over control of the parkway to the state.