William John Brock (c.1817–1863) was an English clergyman, religious writer, and poet.
After receiving his B.A., Brock took holy orders and entered the Anglican Church as curate of St. George's, Barnsley, Yorkshire.
In 1847 Brock published a small volume of poems, Wayside Verses, dating the preface "London, 22 September".
In 1858, Brock published a second edition, dating it "Hayfield Parsonage, 22 September 1858".
After Brock's death, The Rough Wind stayed, a volume of The Library of Excellent Literature, was published in 1867, and The Bright Light in the Clouds in 1870.