List of bus routes in Nassau County, New York

The following bus routes are operated in Nassau County, New York. Most of these routes are operated under Nassau Inter-County Express (NICE), formerly MTA Long Island Bus, except in Greater Long Beach, where that city operates its own bus service through Long Beach Bus.

These tables give details for the routes that service Nassau County primarily. For details on routes that run into Nassau County but do not service it primarily, see:
 * List of bus routes in Queens: Q2, Q5, Q36, Q46, Q85, Q110, Q111, Q113, Q114
 * List of express bus routes in New York City: QM6, QM36

Routes
Some of routes listed below are the direct descendants of streetcar lines (see List of streetcar lines on Long Island and in Queens), and most were privately operated prior to 1973.

Nassau Inter-County Express
NICE routes are designated on the buses, bus stop signs, and timetables with a lowercase "n". Previously, the routes were designated with an uppercase "N", akin to routes in larger bus systems surrounding the area.

Routes shown are for the full route except for branching. The n4, n6 and n40/41 provide service 24 hours a day; all other routes are daily service except late nights unless otherwise noted.
 * Roosevelt Field Mall note: All routes entering Roosevelt Field Mall from Old Country Road travel to/from points east via East Gate Boulevard, and to/from points west via Ring Road West.
 * Queens note: NICE routes to Jamaica and Flushing do not carry customers wholly within Queens except where noted.

Connections to New York City Subway stations at the bus routes' terminals are also listed where applicable.

Shuttles
The Elmont and Mercy Medical shuttles are resurrected former regular routes, with the Port Washington shuttle being a former MSBA shuttle. These shuttles are now serviced with passenger vans, and operate only during weekday rush hours.

Discontinued services
Note that discontinued services pre-NICE takeover are prefixed with an uppercase "N". Note about the former Jones Beach routes: the original JB routes (except JB87 and JB88) were numbered from the local “N”-labeled route (see above) which each Jones Beach-bound route followed starting its run.

City of Long Beach
The City of Long Beach operates five bus routes within the City and to Point Lookout, all originating from the Long Beach LIRR station. The fare is $2.25 unless otherwise noted and payable in cash (coins and $1 bills) only. MetroCard is not accepted.

The East Loop & West Loop were once operated by the Long Beach Railway company as trolley lines.

Service is available at all times except early Monday morning.

City of Glen Cove
In addition to being served by the n21 and n27 bus routes, the City of Glen Cove also operates two weekday services.


 * Commuter bus to Glen Cove industrial park (one a.m. trip).
 * Loop bus via Landing Road, Forest Avenue, Sea Cliff Avenue, and Glen Cove Avenue (four trips).

Village of North Hills
The Village of North Hills operates a shuttle bus service between Village Hall and the Manhasset LIRR station for village residents.