2017–18 Nemzeti Bajnokság I/B (men's handball)

The 2017–18 Nemzeti Bajnokság I/B is the 50th season of the Nemzeti Bajnokság I/B, Hungary's second tier Handball league.

Team information
There are 14–14 clubs in the 2 group, with three-three promoted teams from Nemzeti Bajnokság II.

Team changes
Promoted from 2016–17 Nemzeti Bajnokság II
 * KK Ajka (North-west)
 * Tatabánya KC (U20) (North)
 * Debreceni EAC (North-east)

Relegated from 2016–17 Nemzeti Bajnokság I
 * Balmazújvárosi KK
 * Mezőkövesdi KC

Relegated to 2017–18 Nemzeti Bajnokság II
 * Alba-MÁV-Előre (North-west)
 * Tiszavasvári SE (North-east)
 * Pénzügyőr SE (South)

Promoted to 2017–18 Nemzeti Bajnokság I
 * Dabas VSE KC
 * Ferencvárosi TC

Western Group
The following 14 clubs compete in the NB I/B (Western) during the 2017–18 season:

Eastern Group
The following 14 clubs compete in the NB I/B (Eastern) during the 2017–18 season:

Schedule and results
In the table below the home teams are listed on the left and the away teams along the top.

Schedule and results
In the table below the home teams are listed on the left and the away teams along the top.