State Highway 90 also known as SH-90 is a state highway connecting Hunsur of Mysore and Talakaveri of Kodagu district, in the South Indian state of Karnataka. It has a total length of .
Major towns and villages on SH-90 are: Hunsur, Kallahalli, Hunasegala, Muthurayana Hosalli, Manugana Halli, Karnakuppe, Panchavalli, Allur, Muddanahalli, Ane chowkur, Mathigodu (Elephant Camp), Thithimathi, Gonikoppal, Virajpet, Nariyandada, Kakkabbe, Kunjila, Napoklu, Ballamavati, Bhagamandala and Talakaveri.
This highway not only connects south Kodagu to Mysore district, but also connects Kannur district of Kerala to Mysore and Bangalore.