Route nationale 42 (RN 42) is a secondary highway in Madagascar, running from Fianarantsoa to Ambatomainty. It crosses the region of Haute Matsiatra.

Selected locations on route

(east to north-west)

References

v t e Roads in Madagascar
National roads	RN1 RN1a RN1b RN2 RN3 RN3a RN3b RN4 RN5 RN5a RN6 RN7 RN8 RN8a RN8b RN8c RN9 RN10 RN11 RN11a RN12 RN12a RN13 RN14 RN15 RN16 RN17 RN18 RN19 RN20 RN21 RN22 RN23 RN23a RN24 RN25 RN26 RN27 RN30 RN30a RN31 RN32 RN33 RN33a RN33b RN34 RN35 RN36 RN41 RN42 RN43 RN44 RN45 RN46 RN53 RN54 RN55 RN56 RN57 RN58a RN59a RN59b
Provincial roads	RIP3F RIP5 RIP7 RIP19 RIP23 RIP26 RIP29 RIP51 RIP73 RIP74 RIP84 RIP103 RIP107 RIP112 RIP112M RIP114 RIP116 RIP117 RIP117M RIP118 RIP202D
Toll highways	Autoroute Antananarivo–Toamasina (under construction)