Joaquim is the Portuguese and Catalan version of Joachim and may refer to:
- Agnes Joaquim (born Ashkhen Hovakimian, 1854–1899), Singaporean Armenian who bred Singapore's first hybridised orchid hybrid, Vanda 'Miss Joaquim'
- Alberto Joaquim Chipande, politician
- Eduardo Joaquim Mulémbwè, politician
- Joaquim Agostinho (1943–1984), Portuguese professional bicycle racer
- Joaquim Amat-Piniella (1913–1974), Catalan writer and politician
- Joaquim Antonio (Callado) da Silva (1848–1880), Brazilian composer and flutist
- Joaquim António de Aguiar (1792–1884), Portuguese politician
- Joaquim Arcoverde de Albuquerque Cavalcanti (1850–1930), first Cardinal to be born in Latin America
- Joaquim Augusto Mouzinho de Albuquerque (1855–1902), Portuguese soldier
- Joaquim Benedito Barbosa Gomes, first black Supreme Federal Tribunal justice in Brazil
- Joaquim Carvalho (born 1937), Portuguese football goalkeeper
- Joaquim Chissano (born 1939), President of Mozambique
- Joaquim Cruz (born 1963), former Brazilian athlete
- Joaquim de Almeida (born 1957), Portuguese actor
- Joaquim de Magalhães Fernandes Barreiros (Quim Barreiros) (born 1947), Portuguese musician
- Joaquim Ferraz (born 1974), Portuguese footballer
- Joaquim Floriano de Godoy (1826–1907), Brazilian doctor and politician
- Joaquim Gomes (born 1980), Angolan professional basketball player
- Joaquim Gomes (cyclist), Portuguese road bicycle racer
- Joaquim Goes, Indian scientist
- Joaquim Guedes (born 1932), Brazilian architect
- Joaquim José Antunes (1731–1811), Portuguese harpsichord maker
- Joaquim Leitão (born 1956), Portuguese film director
- Joaquim Machado de Castro (1731–1822), one of Portugal's foremost sculptors
- Joaquim Magalhães Mota (born 1947), Portuguese politician
- Joaquim Manuel de Macedo (1820–1882), Brazilian author
- Joaquim Maria Machado de Assis (1839–1908), Brazilian realist novelist, poet and short-story writer
- Joaquim Miranda (1950–2006), Portuguese economist and politician
- Joaquim Nabuco (1849–1910), Brazilian writer and statesman
- Joaquim Nadal (born 1948), spokesperson of the Catalan Government
- Joaquim Pedro de Andrade (1932–1988), Brazilian film director and screenwriter
- Joaquim Pedro de Oliveira Martins (1845–1894), Portuguese writer
- Joaquim Pimenta de Castro (1846–1918), Portuguese military officer and politician
- Joaquim Pinheiro (born 1960), retired Portuguese runner
- Joaquim Rafael Branco (born 1953), São Toméan politician
- Joaquim Rodríguez Spanish Cyclist
- Joaquim Santana, Portuguese footballer
- Joaquim Sapinho (born 1965), Portuguese film director
- Joaquim Silva (athlete) (born 1961), Portuguese long-distance runner
- Joaquim Videira (born 1984), Portuguese épée fencer
- Marcos Joaquim dos Santos (born 1975), Brazilian central defender
- Tobias Joaquim Dai (born 1950), Minister of National Defence of Mozambique
- Vasco Joaquim Rocha Vieira (born 1939), Portuguese administrator and army officer