Watford have played Gillingham 90 times in competitive football, winning 40, drawing 26 and losing 24, first meeting on 12 Dec 1914 and most recently on 23 Aug 2016. Every meeting is listed below.
| Date | Season | Competition | Venue | Opponent | Score | Scorers | Att |
|---|---|---|---|---|---|---|---|
| 12 Dec 1914 | 1914–15 | Southern League | H | Gillingham | 4–0 | Joe McLauchlan, Tommy Waterall | 2,500 |
| 17 Apr 1915 | 1914–15 | Southern League | A | Gillingham | 3–2 | George Edmonds, Albert Green, Fred Gregory | |
| 1 Jan 1921 | 1920–21 | Third Division | H | Gillingham | 3–1 | ||
| 16 Mar 1921 | 1920–21 | Third Division | A | Gillingham | 1–1 | ||
| 29 Apr 1922 | 1921–22 | Third Division South | H | Gillingham | 1–0 | ||
| 6 May 1922 | 1921–22 | Third Division South | A | Gillingham | 1–1 | ||
| 21 Oct 1922 | 1922–23 | Third Division South | A | Gillingham | 4–1 | ||
| 28 Oct 1922 | 1922–23 | Third Division South | H | Gillingham | 5–2 | ||
| 8 Sep 1923 | 1923–24 | Third Division South | H | Gillingham | 1–1 | ||
| 15 Sep 1923 | 1923–24 | Third Division South | A | Gillingham | 0–0 | ||
| 6 Sep 1924 | 1924–25 | Third Division South | A | Gillingham | 0–0 | ||
| 3 Jan 1925 | 1924–25 | Third Division South | H | Gillingham | 1–2 | ||
| 5 Dec 1925 | 1925–26 | Third Division South | H | Gillingham | 3–1 | ||
| 17 Apr 1926 | 1925–26 | Third Division South | A | Gillingham | 1–0 | ||
| 9 Oct 1926 | 1926–27 | Third Division South | H | Gillingham | 4–0 | ||
| 26 Feb 1927 | 1926–27 | Third Division South | A | Gillingham | 0–3 | ||
| 27 Dec 1927 | 1927–28 | Third Division South | A | Gillingham | 3–0 | ||
| 2 May 1928 | 1927–28 | Third Division South | H | Gillingham | 5–3 | ||
| 15 Sep 1928 | 1928–29 | Third Division South | H | Gillingham | 1–0 | ||
| 24 Apr 1929 | 1928–29 | Third Division South | A | Gillingham | 0–0 | ||
| 11 Jan 1930 | 1929–30 | Third Division South | A | Gillingham | 2–1 | ||
| 5 Apr 1930 | 1929–30 | Third Division South | H | Gillingham | 4–1 | ||
| 1 Nov 1930 | 1930–31 | Third Division South | A | Gillingham | 2–4 | ||
| 7 Mar 1931 | 1930–31 | Third Division South | H | Gillingham | 1–0 | ||
| 10 Oct 1931 | 1931–32 | Third Division South | H | Gillingham | 2–0 | ||
| 20 Feb 1932 | 1931–32 | Third Division South | A | Gillingham | 1–0 | ||
| 15 Oct 1932 | 1932–33 | Third Division South | H | Gillingham | 2–0 | ||
| 25 Feb 1933 | 1932–33 | Third Division South | A | Gillingham | 3–3 | ||
| 9 Sep 1933 | 1933–34 | Third Division South | H | Gillingham | 2–1 | ||
| 20 Jan 1934 | 1933–34 | Third Division South | A | Gillingham | 3–3 | ||
| 22 Sep 1934 | 1934–35 | Third Division South | A | Gillingham | 2–1 | ||
| 2 Feb 1935 | 1934–35 | Third Division South | H | Gillingham | 3–1 | ||
| 7 Dec 1935 | 1935–36 | Third Division South | H | Gillingham | 1–2 | ||
| 11 Apr 1936 | 1935–36 | Third Division South | A | Gillingham | 0–0 | ||
| 5 Sep 1936 | 1936–37 | Third Division South | H | Gillingham | 6–1 | ||
| 2 Jan 1937 | 1936–37 | Third Division South | A | Gillingham | 1–2 | ||
| 4 Sep 1937 | 1937–38 | Third Division South | A | Gillingham | 0–0 | ||
| 15 Jan 1938 | 1937–38 | Third Division South | H | Gillingham | 1–1 | ||
| 9 Sep 1950 | 1950–51 | Third Division South | H | Gillingham | 5–0 | ||
| 13 Jan 1951 | 1950–51 | Third Division South | A | Gillingham | 1–3 | ||
| 17 Nov 1951 | 1951–52 | Third Division South | H | Gillingham | 2–2 | ||
| 5 Apr 1952 | 1951–52 | Third Division South | A | Gillingham | 0–1 | ||
| 16 Apr 1953 | 1952–53 | Third Division South | H | Gillingham | 0–0 | ||
| 25 Apr 1953 | 1952–53 | Third Division South | A | Gillingham | 1–2 | ||
| 12 Sep 1953 | 1953–54 | Third Division South | H | Gillingham | 6–1 | ||
| 23 Jan 1954 | 1953–54 | Third Division South | A | Gillingham | 3–2 | ||
| 16 Oct 1954 | 1954–55 | Third Division South | A | Gillingham | 1–0 | ||
| 5 Mar 1955 | 1954–55 | Third Division South | H | Gillingham | 1–1 | ||
| 27 Aug 1955 | 1955–56 | Third Division South | A | Gillingham | 0–3 | ||
| 24 Dec 1955 | 1955–56 | Third Division South | H | Gillingham | 0–1 | ||
| 18 Aug 1956 | 1956–57 | Third Division South | A | Gillingham | 3–0 | ||
| 15 Dec 1956 | 1956–57 | Third Division South | H | Gillingham | 2–3 | ||
| 14 Dec 1957 | 1957–58 | Third Division South | A | Gillingham | 1–1 | ||
| 29 Mar 1958 | 1957–58 | Third Division South | H | Gillingham | 3–0 | ||
| 22 Nov 1958 | 1958–59 | Fourth Division | H | Gillingham | 2–2 | ||
| 11 Apr 1959 | 1958–59 | Fourth Division | A | Gillingham | 1–2 | ||
| 31 Oct 1959 | 1959–60 | Fourth Division | A | Gillingham | 0–2 | ||
| 19 Mar 1960 | 1959–60 | Fourth Division | H | Gillingham | 3–1 | ||
| 29 Aug 1964 | 1964–65 | Third Division | A | Gillingham | 2–5 | ||
| 19 Dec 1964 | 1964–65 | Third Division | H | Gillingham | 1–2 | ||
| 18 Sep 1965 | 1965–66 | Third Division | A | Gillingham | 2–2 | ||
| 12 Mar 1966 | 1965–66 | Third Division | H | Gillingham | 1–0 | ||
| 5 Nov 1966 | 1966–67 | Third Division | H | Gillingham | 1–1 | ||
| 1 Apr 1967 | 1966–67 | Third Division | A | Gillingham | 1–4 | ||
| 24 Apr 1968 | 1967–68 | Third Division | A | Gillingham | 0–0 | ||
| 4 May 1968 | 1967–68 | Third Division | H | Gillingham | 3–0 | ||
| 2 Nov 1968 | 1968–69 | Third Division | H | Gillingham | 2–1 | ||
| 11 Jan 1969 | 1968–69 | Third Division | A | Gillingham | 5–0 | ||
| 7 Feb 1970 | 1969–70 | FA Cup | H | Gillingham | 2–1 | ||
| 25 Sep 1974 | 1974–75 | Third Division | H | Gillingham | 0–0 | ||
| 8 Mar 1975 | 1974–75 | Third Division | A | Gillingham | 1–2 | ||
| 20 Nov 1976 | 1976–77 | FA Cup | A | Gillingham | 1–0 | ||
| 2 Sep 1978 | 1978–79 | Third Division | A | Gillingham | 3–2 | ||
| 11 Nov 1978 | 1978–79 | Third Division | H | Gillingham | 1–0 | ||
| 21 Dec 1996 | 1996–97 | Second Division | H | Gillingham | 0–0 | 7,809 | |
| 8 Mar 1997 | 1996–97 | Second Division | A | Gillingham | 1–3 | Keith Scott | 7,385 |
| 20 Sep 1997 | 1997–98 | Second Division | A | Gillingham | 2–2 | Ronny Rosenthal, Richard Johnson | 7,780 |
| 8 Feb 1998 | 1997–98 | Second Division | H | Gillingham | 0–2 | 10,498 | |
| 17 Oct 2000 | 2000–01 | First Division | H | Gillingham | 0–0 | 12,356 | |
| 1 May 2001 | 2000–01 | First Division | A | Gillingham | 3–0 | Heiðar Helguson, Tommy Smith, Paolo Vernazza | 9,098 |
| 18 Nov 2001 | 2001–02 | First Division | A | Gillingham | 0–0 | 8,733 | |
| 21 Apr 2002 | 2001–02 | First Division | H | Gillingham | 2–3 | Anthony McNamee, Allan Nielsen | 15,674 |
| 19 Oct 2002 | 2002–03 | First Division | A | Gillingham | 0–3 | 8,728 | |
| 18 Mar 2003 | 2002–03 | First Division | H | Gillingham | 0–1 | 10,492 | |
| 30 Aug 2003 | 2003–04 | First Division | H | Gillingham | 2–2 | Heiðar Helguson, Danny Webber | 12,793 |
| 26 Dec 2003 | 2003–04 | First Division | A | Gillingham | 0–1 | 8,971 | |
| 2 Nov 2004 | 2004–05 | Championship | A | Gillingham | 0–0 | 7,009 | |
| 5 Feb 2005 | 2004–05 | Championship | H | Gillingham | 2–0 | Barry Ashby, Chris Eagles | 15,188 |
| 14 Aug 2007 | 2007–08 | League Cup | H | Gillingham | 3–0 | Tamás Priskin 22, Douglas Rinaldi 36, Alex Campana 71 | 8,166 |
| 23 Aug 2016 | 2016–17 | League Cup | H | Gillingham | 1–2 | Odion Ighalo 58 | 7,004 |
See also: the Gillingham archive and Gillingham v Watford.