Marmaro
{{onesource|date=September 2024}}
{{Infobox islands
|name = Marmaro
|native_name = Μάρμαρο
|native_name_lang = el
|image_name =
|image_caption =
|coordinates = {{coord|34.9487|26.1275|region:GR_type:isle|display=it}}
| map = Greece
| map_caption =
|location =
|archipelago = Cretan Islands
|total_islands =
|area_km2 = 0.008
|highest_mount =
|elevation_m =
|country = Greece
|country_admin_divisions_title = Region
|country_admin_divisions = Crete
|country_admin_divisions_title_1 = Regional unit
|country_admin_divisions_1 = Lasithi
|country_admin_divisions_title_2 = Municipality
|country_admin_divisions_2 =
|country_capital =
|population = 0
|population_as_of = 2001
|density_km2 =
|postal_code =
|area_code =
|registration_plate =
|website =
}}
Marmaro ({{langx|el|Μάρμαρο}}, "marble"), is an uninhabited Greek islet, located south of cape Goudero on the coast of Lasithi, eastern Crete, in the Libyan Sea. {{Cite web |title=Marmaro - Island |url=https://www.routeyou.com/en-gr/location/view/50610119 |access-date=2024-09-11 |website=RouteYou |language=en}} It forms a close group of islands with Koufonisi, Makroulo, Strongyli, and Trachilos.