The M38 is a short metropolitan route in Johannesburg, South Africa.

[1][2] The entire route is in the Johannesburg South area, connecting Southgate with Tulisa Park via Ridgeway.

[3] It is parallel to the Johannesburg Southern Bypass (N12 highway) for its entire route.

The M38 begins at a junction with the R553 road in the Eikenhof suburb of Johannesburg South.

It passes under the N12 highway (Johannesburg Southern Bypass) and meets the southern terminus of the M5 road (Nasrec Road) before turning eastwards to pass under the M1 highway.