Joseph Wolstenholme (September 30, 1829 – November 18, 1891) was an English mathematician.
Wolstenholme was born in Eccles near Salford, Lancashire, England.
He graduated from St John's College, Cambridge as Third Wrangler in 1850 and was elected a fellow of Christ's College in 1852.
He became a professor of mathematics at the Royal Indian Engineering College at Cooper's Hill, Egham near London from 1871 to 1889.
In 1878 he published an expanded version of Mathematical Problems, and in 1888 Examples for Practice in the Use of Seven-figure Logarithms.
He was a close friend of Leslie Stephen from his undergraduate studies at Cambridge.
Virginia Woolf used his personality for the character Augustus Carmichael in her novel To the Lighthouse.
His sister was the feminist Elizabeth Clarke Wolstenholme Elmy.