National Solidarity may refer to:

• National Solidarity (Greece), World War II-era Resistance welfare service in Greece
• National Solidarity Alliance, a Peruvian political alliance
• National Solidarity Party (Guatemala), a political party in Guatemala
• National Solidarity Party (Peru), a Peruvian political party
• Union for Democracy and National Solidarity, an oppositional political party in Benin, part of the Star Alliance

• Hiatt, Missouri
• Hiatus (fly)
• Hiatus (genus)
• Hiatus hernia
• Hiawanda's Cross
• Hiawassee Academy
• Hiawassee High School
• Hiawassee Junior College
• Hiawassee, Tennessee
• Hiawatha and Minnehaha by Edmonia Lewis
• Hiawatha Correctional Facility
• Hiawatha crater
• Hiawatha Crater
• Hiawatha (film)
• Hiawatha Glacier
• Hiawatha Glacier Crater
• Hiawatha Island
• Hiawatha (poem)
• Hiawatha (Riverboat)
• Hiawatha (riverboat)
• Hiawatha (sculpture)
• Hiawatha, the Messiah of the Ojibway
• Hibaayeb
• Hiba Bukhari
• Hibachi for Lunch