Viscount Greenwood, of Holbourne in the County of London, was a title in the Peerage of the United Kingdom

Peerage of the United Kingdom

The Peerage of the United Kingdom comprises most peerages created in the United Kingdom of Great Britain and Ireland after the Act of Union in 1801, when it replaced the Peerage of Great Britain...

. It was created in 1937 for the politician Hamar Greenwood, 1st Baron Greenwood

Hamar Greenwood, 1st Viscount Greenwood

Hamar Greenwood, 1st Viscount Greenwood PC, KC , known as Sir Hamar Greenwood, Bt, between 1915 and 1929 and as The Lord Greenwood between 1929 and 1937, was a Canadian-born British lawyer and politician...

. He served as the last Chief Secretary for Ireland

Chief Secretary for Ireland

The Chief Secretary for Ireland was a key political office in the British administration in Ireland. Nominally subordinate to the Lord Lieutenant, from the late 18th century until the end of British rule he was effectively the government minister with responsibility for governing Ireland; usually...

 from 1920 to 1922. Greenwood had already been created a Baronet, of Onslow Gardens in the Royal Borough of Kensington, in the Baronetage of the United Kingdom on 8 February 1915, and Baron Greenwood, of Llanbister in the County of Radnor, in 1929. His younger son, the third Viscount (who succeeded his elder brother in 1998), was an actor. The titles became extinct on his death in 2003.

Viscounts Greenwood (1937)

• Hamar Greenwood, 1st Viscount Greenwood
  Hamar Greenwood, 1st Viscount Greenwood
  Hamar Greenwood, 1st Viscount Greenwood PC, KC , known as Sir Hamar Greenwood, Bt, between 1915 and 1929 and as The Lord Greenwood between 1929 and 1937, was a Canadian-born British lawyer and politician...
  
  (1870–1948)
• David Henry Hamar Greenwood, 2nd Viscount Greenwood (1914–1998)
• Michael George Hamar Greenwood, 3rd Viscount Greenwood (1923–2003)