Cincinnati Reds franchise seasons
119 available seasons. Historical team names follow each season's source article.
- 2025 Cincinnati Reds — 53 roster players
- 2024 Cincinnati Reds — 61 roster players
- 2023 Cincinnati Reds — 65 roster players
- 2022 Cincinnati Reds — 67 roster players
- 2021 Cincinnati Reds — 55 roster players
- 2020 Cincinnati Reds — 43 roster players
- 2019 Cincinnati Reds — 47 roster players
- 2018 Cincinnati Reds — 53 roster players
- 2017 Cincinnati Reds — 47 roster players
- 2016 Cincinnati Reds — 52 roster players
- 2015 Cincinnati Reds — 50 roster players
- 2014 Cincinnati Reds — 45 roster players
- 2013 Cincinnati Reds — 39 roster players
- 2012 Cincinnati Reds — 38 roster players
- 2011 Cincinnati Reds — 42 roster players
- 2010 Cincinnati Reds — 44 roster players
- 2009 Cincinnati Reds — 46 roster players
- 2008 Cincinnati Reds — 48 roster players
- 2007 Cincinnati Reds — 50 roster players
- 2006 Cincinnati Reds — 54 roster players
- 2005 Cincinnati Reds — 46 roster players
- 2004 Cincinnati Reds — 44 roster players
- 2003 Cincinnati Reds — 57 roster players
- 2002 Cincinnati Reds — 43 roster players
- 2001 Cincinnati Reds — 50 roster players
- 2000 Cincinnati Reds — 45 roster players
- 1999 Cincinnati Reds — 35 roster players
- 1998 Cincinnati Reds — 47 roster players
- 1997 Cincinnati Reds — 50 roster players
- 1996 Cincinnati Reds — 48 roster players
- 1995 Cincinnati Reds — 47 roster players
- 1994 Cincinnati Reds — 35 roster players
- 1993 Cincinnati Reds — 51 roster players
- 1992 Cincinnati Reds — 42 roster players
- 1991 Cincinnati Reds — 40 roster players
- 1990 Cincinnati Reds — 40 roster players
- 1989 Cincinnati Reds — 41 roster players
- 1988 Cincinnati Reds — 45 roster players
- 1987 Cincinnati Reds — 37 roster players
- 1986 Cincinnati Reds — 34 roster players
- 1985 Cincinnati Reds — 37 roster players
- 1984 Cincinnati Reds — 43 roster players
- 1983 Cincinnati Reds — 35 roster players
- 1982 Cincinnati Reds — 33 roster players
- 1981 Cincinnati Reds — 33 roster players
- 1980 Cincinnati Reds — 34 roster players
- 1979 Cincinnati Reds — 35 roster players
- 1978 Cincinnati Reds — 35 roster players
- 1977 Cincinnati Reds — 37 roster players
- 1976 Cincinnati Reds — 29 roster players
- 1975 Cincinnati Reds — 29 roster players
- 1974 Cincinnati Reds — 35 roster players
- 1973 Cincinnati Reds — 36 roster players
- 1972 Cincinnati Reds — 31 roster players
- 1971 Cincinnati Reds — 35 roster players
- 1970 Cincinnati Reds — 33 roster players
- 1969 Cincinnati Reds — 36 roster players
- 1968 Cincinnati Reds — 34 roster players
- 1967 Cincinnati Reds — 33 roster players
- 1966 Cincinnati Reds — 31 roster players
- 1965 Cincinnati Reds — 34 roster players
- 1964 Cincinnati Reds — 33 roster players
- 1963 Cincinnati Reds — 35 roster players
- 1962 Cincinnati Reds — 37 roster players
- 1961 Cincinnati Reds — 37 roster players
- 1960 Cincinnati Reds — 41 roster players
- 1959 Cincinnati Reds — 39 roster players
- 1952 Cincinnati Reds — 36 roster players
- 1951 Cincinnati Reds — 33 roster players
- 1950 Cincinnati Reds — 34 roster players
- 1949 Cincinnati Reds — 35 roster players
- 1948 Cincinnati Reds — 36 roster players
- 1947 Cincinnati Reds — 38 roster players
- 1946 Cincinnati Reds — 35 roster players
- 1945 Cincinnati Reds — 34 roster players
- 1944 Cincinnati Reds — 39 roster players
- 1943 Cincinnati Reds — 30 roster players
- 1942 Cincinnati Reds — 35 roster players
- 1941 Cincinnati Reds — 35 roster players
- 1940 Cincinnati Reds — 33 roster players
- 1939 Cincinnati Reds — 38 roster players
- 1938 Cincinnati Reds — 34 roster players
- 1937 Cincinnati Reds — 43 roster players
- 1936 Cincinnati Reds — 33 roster players
- 1935 Cincinnati Reds — 33 roster players
- 1934 Cincinnati Reds — 41 roster players
- 1933 Cincinnati Reds — 28 roster players
- 1932 Cincinnati Reds — 29 roster players
- 1931 Cincinnati Reds — 32 roster players
- 1930 Cincinnati Reds — 33 roster players
- 1929 Cincinnati Reds — 31 roster players
- 1928 Cincinnati Reds — 29 roster players
- 1927 Cincinnati Reds — 29 roster players
- 1926 Cincinnati Reds — 33 roster players
- 1925 Cincinnati Reds — 34 roster players
- 1924 Cincinnati Reds — 32 roster players
- 1923 Cincinnati Reds — 29 roster players
- 1922 Cincinnati Reds — 24 roster players
- 1921 Cincinnati Reds — 30 roster players
- 1920 Cincinnati Reds — 26 roster players
- 1919 Cincinnati Reds — 27 roster players
- 1918 Cincinnati Reds — 26 roster players
- 1917 Cincinnati Reds — 29 roster players
- 1916 Cincinnati Reds — 33 roster players
- 1915 Cincinnati Reds — 29 roster players
- 1914 Cincinnati Reds — 42 roster players
- 1913 Cincinnati Reds — 45 roster players
- 1912 Cincinnati Reds — 41 roster players
- 1911 Cincinnati Reds — 32 roster players
- 1910 Cincinnati Reds — 38 roster players
- 1909 Cincinnati Reds — 44 roster players
- 1908 Cincinnati Reds — 33 roster players
- 1907 Cincinnati Reds — 30 roster players
- 1906 Cincinnati Reds — 35 roster players
- 1905 Cincinnati Reds — 26 roster players
- 1904 Cincinnati Reds — 21 roster players
- 1903 Cincinnati Reds — 28 roster players
- 1902 Cincinnati Reds — 28 roster players
- 1901 Cincinnati Reds — 33 roster players