Interstate 575 (I-575) is an auxiliary Interstate Highway in the United States, which branches off I-75 in Kennesaw and connects the Atlanta metropolitan area with the North Georgia mountains, extending 30.97 miles (49.84 km). I-575 is also the unsigned State Route 417 (SR 417) and is cosigned as SR 5. I-575 begins in northern Cobb County near Kennesaw and goes mostly through Cherokee County, ending at its northern border with Pickens County, where it continues as SR 515. It is also the Phillip M. Landrum Memorial Highway in honor of Phillip M. Landrum (1907–1990), who was a Representative from Georgia. It is entirely concurrent with Georgia State Route 5.

For almost all of its length, I-575 has two lanes in each direction, with a road median of grass, along with crape myrtle (a locally-common landscaping tree) or wildflowers, both of which are summer-flowering. Each direction has one truck lane for climbing uphill (miles 12 to 13 northbound, miles 10 to 9 southbound), two extended acceleration lanes (north from Towne Lake Parkway and south from Marietta Highway), and two auxiliary lanes (connecting Bells Ferry and Chastain Roads).

The city of Holly Springs recently annexed land to Sixes Road. Other cities that have annexed I-575 include Canton and Ball Ground.

I-575 crosses the Little River between Woodstock and Holly Springs and has four bridges over the Etowah River in northeastern Canton as it flows under the southern half of the Riverstone Parkway (former SR 5) exit. It also crosses Noonday Creek between Barrett Parkway and Chastain Road at the northeast corner of Town Center at Cobb regional mall. That stream roughly follows the freeway northward on the east side of the road, passing alongside the northbound ramp to SR 92 and then crossing back under to the northwest just before Towne Lake Parkway.

At the Canton and Holly Springs exit, the two city limits meet. Here, the road (old SR 5) was realigned to cross I-575 at a more perpendicular angle when I-575 was constructed. This left two dead-end streets: Hiram Way in Holly Springs and Travis Tritt Lane in Canton. Just north of here, I-575 crosses Univeter Road.

The entire length of I-575 is part of the National Highway System, a system of routes determined to be the most important for the nation's economy, mobility, and defense.

I-575 was mostly constructed as a suburban spur highway, intended to serve an undeveloped area for future settlement, rather than as one to relieve traffic or to link I-75 to an existing city or large town (On the other hand, I-985 was built as a link between I-85 and the preexisting city of Gainesville.) It has since accelerated land development and population growth in the area far beyond what the Georgia Department of Transportation (GDOT) predicted, essentially causing its own traffic. (After just 20 years, it carried as many cars per day as it was expected to in 40 years.)

The first stage of I-575 was constructed in 1979 from I-75 to SR 92 near Woodstock and was opened to traffic on October 16, 1980. The next section to SR 20 began construction in 1981 and was opened on March 29, 1985, as far north as exit 11 (now mile 20). The section between the original exit 8 (now exit 16A) and exit 10 (now exit 19) was originally part of the Canton Bypass (SR 20), which was constructed in 1978. The final portion of I-575 to past Howell Bridge Road and SR 372 opened later, and that extended the highway to its present length of 31 miles (50 km), although the northernmost mile (1.6 km) given in this length was not constructed up to Interstate Highway standards since it extends past a surface (at-grade) intersection. This final portion north of Canton was constructed of concrete rather than asphalt, and narrow black lines run on either side of the white lane markings.