National Day of Liechtenstein The National Day of Liechtenstein is on theĀ 15 August (The Hereditary Prince becomes Regent 2004) VN:F [1.9.22_1171]please wait...Rating: 0.0/10 (0 votes cast)VN:F [1.9.22_1171]Rating: 0 (from 0 votes) Related PostsAustria National Day ( )National Day of Bulgaria ( )National Day of Croatia ( )National Day of Cyprus ( )National Day of Denmark ( )National Day of England ( )National Day of Estonia ( ) Related posts: National Day of Greece National Day of Netherlands National Day of Romania National Day of Slovenia September 2, 2011 admin National Day Comments Off on National Day of Liechtenstein