Novoisayevo (; , Yaññ ðsay) is a rural locality (a village) in Novosubayevsky Selsoviet, Nurimanovsky District, Bashkortostan, Russia. The population was 9 as of 2010. There is 1 street.
Novoisayevo is located 30 km southeast of Krasnaya Gorka (the district's administrative centre) by road. Ryatush is the nearest rural locality.