The Sanremo trolleybus system or San Remo trolleybus system (Italian: Rete filoviaria di Sanremo), also known as the Italian Riviera trolleybus (Italian: Filovia della Riviera dei Fiori), operated from 1942 to 2021 and was focused on the town and comune of Sanremo, in the region of Liguria, northwestern Italy.

Opened in 1942 and extended in two stages by 1951, the system consisted of three routes operating along different portions of a single 28.5 km-long (17.7 mi)[1][3] corridor, linking the coastal towns of Ventimiglia and Taggia.

The first trolleybus route, from Sanremo to Ospedaletti (9.15 km),[3] was inaugurated on 21 April 1942, followed on 1 February 1948 by the second line (Sanremo–Taggia), and in 1951 by the Ospedaletti–Ventimiglia extension.

[1] On 20 December 2001, a 700-metre (2,300 ft) branch was opened on line T to serve the then-new Taggia-Arma railway station.

In February 2024, it was decided to close the system, and work to dismantle the overhead wires began.