Manuel Ventura Cajuda de Sousa (born 27 June 1951 in Olhão, Algarve) is a Portuguese football manager.

In a career which spanned three decades, he managed nearly 20 teams in his country, also working in Egypt and the United Arab Emirates.

Cajuda played exclusively in the Algarve region during his career, starting out at S.C. Olhanense. In 1975, he joined what would be his main club, S.C. Farense, also in the second division.

In the 1983 summer, even though the Faro outfit had just promoted to the top level, 32-year old Cajuda decided to retire from playing.

Immediately after retiring, Cajuda started working as a manager with Farense, leading the team through 12 games in its first-ever season in the first division, and managing to help it retain it league status, after finishing 12th. He continued to work in his native region in the following years, with Portimonense SC, Olhanense and Louletano DC.

In 1994, after years of working almost exclusively in the second level - the exception being S.C.U. Torreense in 1991–92 - Cajuda signed for Sporting de Braga, remaining in Minho for the following eight years (leading the team to the fourth place in 1997 and 2001), with two incomplete seasons with C.F. Os Belenenses in between. He managed to finish in the top-six with his following two teams, U.D. Leiria - he had already been in charge of the club nine years before, in division two - and C.S. Marítimo.