Ligosullo

{{Infobox Italian frazione

| name = Ligosullo

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| image_skyline = Castel Valdajer.jpg

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| image_caption = Castle Valdajer in Ligosullo

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| coordinates = {{coord|46|32|N|13|5|E|type:city(201)_region:IT|display=inline,title}}

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| province = Udine (UD)

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| population_total = 201

| population_as_of = Dec. 2004

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| postal_code = 33020

| area_code = 0433

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Ligosullo is a frazione of Treppo Ligosullo in the Province of Udine in the Italian region Friuli-Venezia Giulia, located about {{convert|110|km|mi}} northwest of Trieste and about {{convert|50|km|mi}} north of Udine. It was a separate comune until February 1 2018, when it was merged with Treppo Carnico, which created the Treppo Ligosullo comune.