Three referendums were held in Liechtenstein during 1988.[1] The first two were held on 24 January and concerned increasing the number of members of the Landtag from 15 to 25 and a plan for company pensions. Both were approved by 51.7% of voters.[1] The third was held on 2 October on the construction of the Gnalp-Steg tunnel [de] and was approved by 55.1% of voters.[1]