Berend "Bert" de Vries (born 29 March 1938) is a retired Dutch politician of the Christian Democratic Appeal (CDA) party and economist.

De Vries attended a Lyceum in Groningen from April 1950 until May 1958 and applied at the National Tax Academy in Rotterdam in June 1958 for a training as a tax collector graduating in August 1959 and simultaneously applied at the University of Groningen in July 1958 majoring in Economics and obtaining an Bachelor of Economics degree in June 1960 and worked as student researcher before graduating with a Master of Economics degree in July 1964. De Vries worked as a civil servant for the Province of Groningen as a tax collector for the Tax and Customs Administration from August 1959 until July 1964 and as a financial analyst for Philips in Eindhoven from July 1964 until January 1968. De Vries applied at the Free University Amsterdam in January 1968 for a postgraduate education in Financial economics and got a doctorate as an Doctor of Philosophy in Financial economics in July 1970. De Vries worked as a researcher at the Erasmus University Rotterdam from May 1968 until November 1978. De Vries served on the Anti-Revolutionary Party Executive Board from March 1975 until November 1978.

De Vries became a Member of the House of Representatives after the resignation of Willem Aantjes, taking office on 21 November 1978 serving as a frontbencher and spokesperson for Economic Affairs, Social Affairs, Civil Service, Small business, Provincial Government Affairs and deputy spokesperson for Social Work and Local Government Affairs. After the election of 1982 the Leader of the Christian Democratic Appeal and Parliamentary leader of the Christian Democratic Appeal in the House of Representatives Ruud Lubbers became Prime Minister in te Cabinet Lubbers I, the Christian Democratic Appeal leadership approached De Vries as his successor as Parliamentary leader, De Vries accepted and became the Parliamentary leader, taking office on 4 November 1982. After the election of 1986 Lubbers returned as Parliamentary leader on 3 June 1986 but following the cabinet formation of 1986 Lubbers continued as Prime Minister in the Cabinet Lubbers II and De Vries was approached to remain as Parliamentary leader, taking office on 14 July 1986. As Parliamentary leader of the largest party in the House of Representatives he also chaired the parliamentary committee for Intelligence and Security. After the election of 1989 Lubbers again returned as Parliamentary leader on 14 September 1989. Following the cabinet formation of 1989 De Vries was appointed as Minister of Social Affairs and Employment in the Cabinet Lubbers III, taking office on 7 November 1989. De Vries served as acting Minister of Agriculture, Nature and Fisheries from 18 September 1990 until 28 September 1990 following the resignation of Gerrit Braks. In December 1993 De Vries announced his retirement from national politics and that he wouldn't stand for the election of 1994. The Cabinet Lubbers III was replaced by the Cabinet Kok I following the cabinet formation of 1994 on 22 August 1994.

De Vries semi-retired from national politics and became active in the private sector and public sector and occupied numerous seats as a corporate director and nonprofit director on several boards of directors and supervisory boards (Unilever, Energy Research Centre, Tinbergen Institute, NIBC Bank and Arcadis) and served on several state commissions and councils on behalf of the government (Public Pension Funds APB, National Insurance Bank, Council for Culture, Statistics Netherlands, Cadastre Agency, Social Employment Act Commission and the Social and Economic Council). De Vries also worked as a trade association executive for the Hospitals association serving as chairman of the executive board from June 1995 until August 2001 and as an advocate, lobbyist and activist for the Anti-war movement, Human rights and the Two-state solution for the Israeli–Palestinian conflict. De Vries also served as a distinguished professor of Financial economics at the Erasmus University Rotterdam from 1 December 1994 until 1 December 1998. De Vries served as Chairman of the Christian Democratic Appeal from 10 October 2001 until 2 November 2002 following the resignation of Marnix van Rij.

De Vries is known for his abilities as a negotiator and manager. De Vries continued to comment on political affairs until his retirement in 2018 and holds the distinction as the second longest-serving Parliamentary leader of the Christian Democratic Appeal in the House of Representatives with 6 years, 273 days.^[1]