Travelers are voting San Dieguito River, San Diego River and Sweetwater River as the best of 6 rivers near San Diego. There are 9 rivers near Oceanside a city just 30 km from San Diego and 1 river near Playas de Rosarito which is 32 km distant. The most popular of these are Otay River near Oceanside and Sweetwater River in Playas de Rosarito. You can find 222 rivers in California and 3914 rivers in the country of United States. Our members favorite in California is Ventura River and Mississippi River is the top pick in United States. Want more? Check out our map of rivers near San Diego.