List of Famous people who died in 1930

William McAdoo was an American Democratic Party politician who represented New Jersey's 7th congressional district in the United States House of Representatives for four terms from 1883 to 1891. He also served as New York City Police Commissioner in 1904 and 1905.

Alan Archibald Campbell-Swinton FRS was a Scottish consulting electrical engineer, who provided the theoretical basis for the electronic television, two decades before the technology existed to implement it. He began experimenting around 1903 with the use of cathode ray tubes for the electronic transmission and reception of images. Campbell described the theoretical basis for an all electronic method of producing television in a 1908 letter to Nature. Campbell-Swinton's concept was central to the cathode ray television because of his proposed modification of the cathode ray tube that allowed its use as both a transmitter and receiver of light. The cathode-ray tube was the system of electronic television that was subsequently developed in later years, as technology caught up with Campbell-Swinton's initial ideas. Other inventors would use Campbell-Swinton's ideas, as a starting-point to realise the cathode ray tube television as the standard, workable form of all electronic television that it became for decades after his death. It is generally considered that the original credit for the successful theoretical conception of using a cathode ray tube device for imaging should belong to Campbell-Swinton.

Louis Pierre Henri Jobier was a French fencer. He won a gold medal in the foil competition at the 1924 Summer Olympics.

Sigurd Ibsen was a Norwegian author, lawyer and statesman, who served as Prime Minister of Norway in Stockholm (1903–1905) and played a central role in the dissolution of the union between Norway and Sweden in 1905.

Elisabeth Röhl; née Elisabeth Gohlke was one of the first German women politicians.

Eugène Devic was a French neurologist who was a native of Lyon.