Waigandshain is an Ortsgemeinde – a community belonging to a Verbandsgemeinde – in the Westerwaldkreis in Rhineland-Palatinate, Germany.

The community lies in the Westerwald between Siegen and Limburg.

Waigandshain belongs to the Verbandsgemeinde of Rennerod, a kind of collective municipality.

Near the community, Bundesstraßen 54 linking Limburg an der Lahn with Siegen, and 414 leading from Hohenroth to Hachenburg cross each other.

The nearest Intercity Express stop is the railway station at Montabaur on the Cologne-Frankfurt high-speed rail line.