What is the name of Champagne's still red wine made under the regional appellation?

Coteaux Champenois is the regional appellation for still wines made in Champagne, including still red wine.

Most people associate Champagne with sparkling wine, but the region also produces small quantities of still wine. Coteaux Champenois can be white, red, or rosé, and it is made from grapes grown within the Champagne area under rules separate from those for sparkling Champagne.

Still red Coteaux Champenois is commonly based on Pinot Noir, although production is limited and bottles can be highly sought after. The wine does not undergo the defining sparkling presentation associated with Champagne wine.

Rosé des Riceys is another still wine from the wider Champagne region, but it is a distinct appellation associated with the village of Les Riceys. Ratafia Champenois is a fortified or mistelle-style regional product, not the answer here.