Cape Agulhas Municipality (Afrikaans: Kaap Agulhas Munisipaliteit) is a municipality located in the Western Cape province of South Africa. As of 2011^[update], it had a population of 33,038. Its municipality code is WC033. It is named after Cape Agulhas, the southernmost point of Africa. The largest town is Bredasdorp, which is the seat of the municipal headquarters. It also includes the villages of Napier, Struisbaai, Elim, Arniston and L'Agulhas, and the De Hoop Nature Reserve.

The municipality covers an area of 3,467 square kilometres (1,339 sq mi) in the Southern Overberg, covering a radius of 30 to 40 kilometres (19 to 25 mi) around Bredasdorp as well as a panhandle extending east to include the De Hoop Nature Reserve. A range of hills runs east–west through the municipality with a gap at Bredasdorp. South of these hills is the low and flat Agulhas plain. The municipality abuts on the Overstrand Municipality to the west, the Theewaterskloof Municipality to the northwest and the Swellendam Municipality to the north.

The 2022 South African census recorded a population of 40,274 people in the municipality, increasing at a rate of 1.9% annually from 2011. Of these, 60.9% identified as "Coloured," 23.4% as "White," and 12.6% as "Black African."

According to the 2011 census the municipality has a population of 33,038 people in 10,162 households. Of this population, 65.6% describe themselves as "Coloured", 21.6% as "White", and 11.5% as "Black African". The first language of 84.4% of the population is Afrikaans, while 6.0% speak Xhosa and 5.6% speak English.

The principal town and location of the municipal headquarters is Bredasdorp, which as of 2011 has a population of 15,524. Napier (pop. 4,214) is situated 15 kilometres (9 mi) northwest of Bredasdorp. South of Bredasdorp on the coast around Cape Agulhas are Struisbaai (pop. 3,877), L'Agulhas (pop. 548) and Suiderstrand (pop. 44). Arniston (pop. 1,267) is further east along the coast. The former mission station of Elim (pop. 1,412) is situated west of Bredasdorp.

The municipal council consists of eleven members elected by mixed-member proportional representation. Six councillors are elected by first-past-the-post voting in six wards, while the remaining five are chosen from party lists so that the total number of party representatives is proportional to the number of votes received. In the election of 1 November 2021, the Democratic Alliance (DA) won a plurality of seats on the council, one short of a majority. The DA then formed a majority coalition government with the Freedom Front Plus (FF Plus) to govern the municipality.

At end of the apartheid era in the early 1990s, municipal councils existed for Bredasdorp and Napier, and local councils for Waenhuiskrans (Arniston), Struisbaai and L'Agulhas. These councils were elected by the white residents of the towns. Coloured residents elected management committees, which were subordinate to the white local authorities, in Bredasdorp, Napier, Arniston and Struisbaai. Rural areas outside of these settlements were served by the Overberg Regional Services Council.

After the national elections of 1994 a process of local government transformation began, in which negotiations were held between the existing local authorities, political parties, and local community organisations. As a result of these negotiations, transitional local councils (TLCs) were created for each town and village. In December 1994 the Napier TLC was created, replacing the Municipality of Napier and the Napier Management Committee. In the same month the Struisbaai TLC replaced the Struisbaai Local Council and the Struisbaai Management Committee. In January 1995 the Bredasdorp TLC was created, amalgamating the Municipality of Bredasdorp, the Bredasdorp Management Committee, the Local Councils of Waenhuiskrans and L'Agulhas, and the Arniston Management Committee.