Pim, Joshua (1869–1942), tennis player, was born 20 May 1869 at Milward Terrace, Bray, Co. Wicklow, son of Joshua Pim, barrister, and Susan Pim (née Middleton). His father died in 1871 and the family moved to Crosthwaite Park, Kingstown (Dún Laoghaire), Co. Dublin. He had two or more elder brothers; one became a doctor in Bath, and one was an army officer; nothing is known of any other siblings. Joshua became a doctor and medical officer at St Colmcille's hospital, Loughlinstown, Co. Dublin, and was also for a period resident surgeon at Jervis St. hospital, Dublin. He is remembered as one of a number of Irish amateur tennis players who had remarkable international success in the 1890s; contemporaries included J. M. P. Boland (qv), H. S. Mahony (qv), and W. J. Hamilton (qv).
Pim won two All-England singles and two All-England doubles titles at Wimbledon. In his first appearance there (1890) he was defeated by Kildare man W. J. Hamilton, who went on to win the singles title, but Pim and his partner, Dubliner Frank Stoker, won the Wimbledon doubles title that year, having crushed the famous Renshaw twins in an earlier round. Pim and Stoker held the Irish doubles title from 1890 to 1895. In 1891 Pim was beaten 3–1 by Wilfred Baddeley in the Wimbledon singles final. In 1892 he lost the final 3–1 to Baddeley; but the next year, 1893, was to be Pim's annus mirabilis. He won the Irish singles title, and at Wimbledon defeated H. S. Mahony (Kerry, and winner in 1896) 3–0 in the penultimate round. He went on to win the singles title on 17 July 1893, defeating Baddeley 3–6, 6–1, 6–3, 6–2. Pim and Stoker won the doubles title the next day (18 July 1893), defeating W. and H. Baddeley 6–3, 4–6, 6–3, 5–7, 6–2. In 1894 he was Irish singles champion, and defeated W. Baddeley 10–8, 6–2, 8–6 to retain the All-England singles title at Wimbledon. He won a thirty-guinea first prize, scoring 135 aces to Baddeley's 118. He did not defend his Wimbledon singles title in 1895, but won the Irish singles title in that year. In 1902 he played under the name ‘Mr X’ for the British Davis Cup team, but lost both his matches at Brooklyn, New York.
He married (c. 1897) Robin Lane and moved to Killiney, Co. Dublin; after retiring from competitive tennis, he continued to work as a doctor in Dublin. He died 15 April 1942 at his Killiney residence and was buried at Deansgrange cemetery, Co. Dublin.