Walter Hermanus Jacobus Steins SJ (1810–1881) was a Dutch Jesuit priest, Vicar Apostolic of Bombay, India (1860–1867), Vicar Apostolic of West Bengal (1867–1877) and (under the personal title of "Archbishop"), third Catholic Bishop of Auckland (1879–1881).
Walter Steins was born on 1 July 1810 in Amsterdam, Netherlands. He was educated there, at St Acheul, Amiens and at Fribourg, Switzerland. In 1832 he entered the Belgian province of the Society of Jesus, was ordained a priest on 8 September 1842 (in Louvain), and made his final profession as a Jesuit in 1849.
Steins obtained permission from his superiors to proceed to Borneo (at that time part of a Dutch colony) but went instead to Bombay where he exercised his priestly ministry until 29 June 1861 when he was consecrated a Bishop and assumed the office of Vicar Apostolic. He founded the college of St Francis-Xavier In 1867 he was translated to become Vicar Apostolic of West Bengal, based in Calcutta. He brought to Bengal the French religious order of the Daughters of the Cross, founded the St Vincent's home refuge and many schools and orphanages. He began also the Bengali mission and missions to the Santals and other eastern tribes. Because of ill-health caused by a fall he was advised to return to Europe and he spent time recuperating at Conflans-sur-Seine, the novitiate of the Sisters of the Sacred Heart in Paris.