1930s murders in the United Kingdom

Elsie Frost, a 14-year-old school-girl was killed in an underpass beneath a railway line near to Wakefield, West Riding of Yorkshire, England, on 9 October 1965. Despite a massive manhunt and national coverage, there has been no successful conviction of anyone responsible for her death. In 2015, after pressure from Elsie's family, West Yorkshire Police re-opened the case, and then, in March 2018 the primary suspect died.

Dorothea Nancy Waddingham (1899 – 16 April 1936) was an English nursing home matron who was convicted of murder in the United Kingdom.

Buck Ruxton (born Bukhtyar Chompa Rustomji Ratanji Hakim; 21 March 1899 – 12 May 1936) was an Indian-born British physician convicted and subsequently hanged for the September 1935 murders of his common-law wife, Isabella Ruxton (née Kerr), and the family housemaid, Mary Jane Rogerson, at his home in Lancaster, England. These murders are informally known as the Bodies Under the Bridge and the Jigsaw Murders, while Ruxton himself became known as The Savage Surgeon.

The murder of Vera Page is a British unsolved child murder case from the early 1930s. On 14 December 1931, 10-year-old Vera Page was reported missing after she failed to return to her Notting Hill home from a visit to a nearby relative. The child's body was found two days later in undergrowth in nearby Addison Road. She had been raped, then manually strangled to death in a murder described by one detective as "the most terrible in which I had to deal with during my career".

The murder of Mona Tinsley is a British child murder case from 1937. On 5 January 1937, 10-year-old Mona Lilian Tinsley disappeared after leaving her Newark-on-Trent school. A former lodger of Mona's parents, Frederick Nodder, became the prime suspect in her abduction. However, despite the fact both strong physical and circumstantial evidence existed attesting to his guilt, because no body could be found, Nodder could not be tried for her murder, but was instead convicted of Mona's abduction and sentenced to seven years in gaol.

Harold Wilkins (1916-?) was the last juvenile to be sentenced to the death penalty in the United Kingdom, in 1932 at the age of 16 though his sentence was later commuted due to his age. Wilkins was convicted of the "sexually related murder" of Ethel Corey.

Hubert "Hugh" George Chevis (21 September 1902 – 21 June 1931) was a lieutenant in the Royal Artillery of the British Army who was the subject of a notable unsolved murder in June 1931. He died of strychnine poisoning after eating contaminated partridge.

Daniel "Dan" O'Boyle (died November 1933) was a Catholic Irish publican murdered by Protestant loyalists in 1933.

William Herbert Wallace (29 August 1878 – 26 February 1933) was convicted in 1931 of the murder of his wife Julia in their home in Wolverton Street in Liverpool's Anfield district. His conviction was later overturned by the Court Of Criminal Appeal, the first instance in British legal history where an appeal had been allowed after re-examination of evidence.

Francis Mawson Rattenbury (11 October 1867 – 28 March 1935) was a British architect although most of his career was spent in British Columbia, Canada, where he designed the province's legislative building among other public commissions. Divorced amid scandal, he was murdered in England at the age of 67 by his second wife's lover.