Robert Slade Lucas (17 July 1867 – 5 January 1942) was an English cricketer who played for Middlesex.

[1] Scores and Biographies Volume XV (1925) records that 'Lucas, Robert Slade, whose first match at Lord's was on 5 May 1887, for Eighteen Colts of Middlesex v M.C.C., was a batsman above the average, who could hit freely and well, a medium-paced bowler, and a fieldsman who took no place in particular.

His name will be found in the Middlesex Eleven from 1891 to 1900, his highest score for the county being 185 v Sussex at Hove in 1895, when he and Mr. T.C.

In minor cricket he played chiefly with the Richmond and Teddington clubs, and for some time was honorary secretary of the latter.

In the course of an innings of 141 not out for Old Taylorians v Merchant Taylors School at Charterhouse Square on 3 July 1891, he hit the ball out of the ground seven times, twice in succession through the same window of a private house.