Alexandre Denguet Atiki (1937? – 30 January 2013) was a Congolese politician. Under the single-party rule of the Congolese Labour Party (PCT), he served in the government of Congo-Brazzaville as Minister of Labour from 1971 to 1975 and was Ambassador to France in the late 1970s. From 2002 to 2012, Denguet Atiki was a Deputy in the National Assembly, and he was also President of the Parliamentary Group of the Presidential Majority from 2007 to 2012.
Denguet Atiki was born at Owando in Cuvette Department. After studying in Brazzaville, he began working at the National Social Security Fund; subsequently he worked with trade unions. In the late 1960s, he was a member of the Executive Bureau of the Congolese Trade Union Confederation (Confédération Syndicale Congolaise, CSC) and was the CSC's Federal Secretary for Education; in that capacity, he was the workers' delegate representing Congo-Brazzaville at the International Labour Conference. He was also a member of the Economic and Social Council of Congo-Brazzaville. Denguet Atiki was Political Counsellor at the Congolese Embassy to France in the early 1970s, and subsequently he was appointed to the Congolese government as Minister of Labour on 16 December 1971.
Denguet Atiki's ministerial responsibilities were expanded when he was appointed as Minister of Labour and Justice on 11 August 1972, and he was also elected to the PCT Central Committee in 1972. Denguet was retained in his post as Minister of Labour and Justice on 30 August 1973.
At a CSC congress in May 1974, Denguet Atiki warned managers that they were required to cooperate with labour unions and that they faced dismissal if they did not. However, he tempered his admonishment to management by warning that "anarchic unionists who try to systematically undermine the authority of directors" would be seriously punished.
Later, on 9 January 1975, Denguet Atiki's portfolios were again modified when he was appointed as Minister of Labour and Social Insurance, in charge of Industry. He was replaced by Pierre Ngaka in December 1975 and subsequently was Director-General of the National Office of Commerce.