Kimmo Samuel Timonen (born 18 March 1975) is a Finnish former professional ice hockey defenseman who played 16 seasons in the National Hockey League (NHL) for the Nashville Predators, Philadelphia Flyers, and Chicago Blackhawks. Timonen had played in over 1,100 NHL games before retiring. During his career, Timonen had also featured in three IIHF World Junior Championships, seven IIHF World Championships, two World Cups and five Olympic tournaments. He won the Stanley Cup with the Chicago Blackhawks in 2015.

Kimmo is a Finnish given name for males. Notable people with the name include:

Kimmo Wilska (born 5 August 1956 in Helsinki) is an English-speaking Finnish newscaster. He worked at YLE from 1985 until 2010 in YLE's morning broadcast, and read the English-language news on YLE News.

Kimmo Pikkarainen (born December 19, 1976 in Helsinki) is a Finnish professional ice hockey defenceman. He currently plays for the team HKm Zvolen in Slovak Extraliga.

Kimmo Pallonen (born 17 January 1959 in Jyväskylän maalaiskunta) is a retired male pole vaulter from Finland. His personal best jump was 5.56 metres, achieved in July 1982 in Raahe. He became Finnish champion in 1979, 1981, 1984 and 1985.

Kimmo Kapanen (born September 12, 1974) is a retired Finnish professional ice hockey goaltender.

Kimmo Savolainen (born 2 August 1974) is a Finnish former ski jumper.

Kimmo Puranen (born 10 October 1958) is a Finnish fencer. He competed in the team épée event at the 1980 Summer Olympics.

Kimmo Eronen (born September 7, 1971 in Turku, Finland ) is a professional Finnish ice hockey player who split the 2009–10 season with Jokerit in the SM-liiga and TuTo and KooKoo of the Mestis. Since beginning his professional career in 1992, Eronen has also played in the Swedish Elitserien and Danish AL-Bank Ligaen.

Kimmo Yliriesto (born 28 January 1983) is a Finnish former ski jumper who competed from 2000 to 2012.