Louis Roos (born 7 December 1957) is a French chess player who holds the FIDE title of International Master (IM, 1982).

His father Michel Roos (1932–2002) won the French Chess Championship in 1964, his mother Jacqueline Roos (died 2016) was an International Correspondence Chess Grandmaster (2000), his sister Céline (1953–2021) was a Woman International Master (WIM), and his brothers Jean-Luc (born 1955) and Daniël (born 1959) are International Masters (IM).

[2] He took part in the individual French Chess Championship finals many times and won three medals: gold (1977) and two bronze (1976, 1980).

[3] In 1978 in Amsterdam he participated in World Chess Championship Zonal tournament.

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