Oger (French pronunciation: [ɔʒe]) is a former commune in the Marne department in north-eastern France.

On 1 January 2018, it was merged into the new commune of Blancs-Coteaux.

[2] The village's vineyards are located in the Côte de Blancs subregion of Champagne, and are classified as Grand Cru (100%) in the Champagne vineyard classification.

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