N5 or N-5 may refer to:
Science and technology N5, the minimal non-modular and non-distributive lattice in mathematical order theory N5, abbreviation for the 5 nanometer semiconductor technology process node
Roads
Other uses N°5, a shortening for Number Five, see Number Five (disambiguation) ASEA N-5, rolling stock used on the SEPTA Norristown High Speed Line LNER Class N5, a class of British steam locomotives London Buses route N5 Nexus 5, an Android smartphone N5, a postcode district in the N postcode area, North London, England SP&S Class N-5, a steam locomotives class, used by the Spokane, Portland and Seattle Railway USS N-5 (SS-57), a 1917 N-class coastal defense submarine of the United States Navy The first level in the Japanese-Language Proficiency Test "N5" (song), by Lali, 2022
See also N05 (disambiguation) Pentazenium (N5+), a pentanitrogen cation in chemistry pentazolium cation (N5+), a cation that is made up of five nitrogen atoms, in chemistry. pentazolate anion (N5−), an anion that is made up of five nitrogen atoms, in chemistry 5N (disambiguation)