James Herwald Ramsbotham, 2nd Viscount Soulbury (21 March 1915 – 12 December 2004) was the elder son of the Rt Hon Herwald Ramsbotham, 1st Viscount Soulbury, British Conservative politician.
At the outbreak of World War II he signed up with the REME, rapidly mastering the professional techniques, meanwhile continuing his work with groups in England.
He married Anthea Margaret Wilton on 5 April 1949 (she died 26 June 1950).
From the late 1950s he lived in Ceylon (Sri Lanka), where his father had been Governor-General, as a Hindu yogi under the name Santhaswami.
Although he ran the Sivathondan Nilayam at Chenkalady in Batticaloa, he also spent much time amongst the Veddas, aboriginal tribal peoples.