What is the name of a French painting with one woman and two men sitting at a table?

The painting you're referring to is likely "Luncheon of the Boating Party" (1880-1881) by Pierre-Auguste Renoir. This iconic Impressionist work depicts a group of friends, including one woman and two men, enjoying a leisurely meal on a balcony. The vibrant colors and lively atmosphere capture the essence of social pleasure in 19th-century France.