Lennox Sydney Brown (24 November 1910 – 1 September 1983) was a South African cricketer who played in two Tests in 1931–32.

[1] Len Brown was a right-handed lower-order batsman and a right-arm fast-medium bowler who turned to bowling leg-breaks and googlies later in his career.

Brown was rarely part of the touring team's first eleven in the major matches, but after a bad showing in the first Test match, which was lost by an innings and 163 runs, he played in a non-first-class match against a New South Wales Country XI and, bowling throughout the Country XI's first innings, took five wickets for 57 runs, with another couple of wickets in the second innings.

[6] But he then left South African domestic cricket for three seasons and he was not selected for the 1935 tour to England.

[7] He returned to South Africa in 1936–37, playing for Transvaal in that season and in 1945–46, for North Eastern Transvaal from 1937 to 1940 and for Rhodesia from 1946 to 1948; he continued to take wickets and, after his stint in League cricket, his batting had improved, but he was not picked for any further representative matches.