Mesoscale may refer to:

• Mesoscale meteorology
• Mesoscopic scale in physics
• Mesoscale manufacturing
• Mesoscale (networking) as in graphs found in the brain connectome

• Parliament of the Cayman Islands
• Parliament of the Central African Republic
• Parliament of the Chechen Republic
• Parliament of the Cocos (Keeling) Islands
• Parliament of the Dominican Republic
• Parliament of the Falkland Islands
• Parliament of the Federation of Bosnia and Herzegovina
• Parliament of the Four Burghs
• Parliament of the Gambia
• Parliament of the Hellenes
• Parliament of the Khmer Republic
• Parliament of the Kingdom of Great Britain
• Parliament of the Klaipeda Region
• Parliament of the Nagorno-Karabakh Republic
• Parliament of the Ottoman Empire
• Parliament of the Palestinian territories
• Parliament of the Province of Canada
• Parliament of the Republic of Serbia
• Parliament of the Turks and Caicos Islands
• Parliament of the United Kingdom of Great Britain and Ireland
• Parliament of the United States Virgin Islands
• Parliament of Timor-Leste
• Parliament of Togo
• Parliament of Toltén
• Parliament of Tristan da Cunha