N series may refer to:

Technology Acer N series, a series of PDAs Contax N-series, Contax cameras Nokia Nseries, smartphone and tablet product family

Transportation Isuzu Elf, known outside Japan as the N series Honda N engine Ford Model N Ford N-series tractor N series, of EMC Winton-engined switchers N-series, Ghandhara Industries vehicles Scania N series Waco N series, biplanes

Other uses N series, of Australian passport N series (nonperforming), mortgage trusts of the Resolution Trust Corporation N (video game), and its sequels QI (N series), of the television show QI

See also N (disambiguation)