|Community association||Grand Sénonais|
|surface||14.68 km 2|
|Residents||849 (January 1, 2017)|
|Population density||58 inhabitants / km 2|
Marsangy is a French municipality with 849 inhabitants (as of January 1 2017) in the department of Yonne in the region Bourgogne Franche-Comté . Marsangy belongs to the Arrondissement of Sens and the canton of Villeneuve-sur-Yonne (until 2015: Canton Sens-Ouest ). The inhabitants are called Maximiacusiens .
Marsangy is located on the Yonne River and is about ten kilometers south-southeast of Sens . Marsangy is surrounded by the neighboring communities of Gron in the north, Étigny in the north and northeast, Véron in the northeast, Passy in the east, Villeneuve-sur-Yonne in the southeast, Rousson in the south and southeast, Chaumot in the south and southwest and Égriselles-le-Bocage in the West.
- Saint-Germain church, originally built in the 9th century, later rebuilt, tower from 1768
- Roussemeau's command