Corruption in Spain describes the prevention and occurrence of corruption in Spain. That (in the early 21st century) there are many political corruption legal processes in the post Franco years of democratic Spain indicates both a social intolerance of the Ancien Régime and a willingness to investigate allegations by a largely young and independent judiciary, despite its senior judges being appointees of parliamentary committees
Transparency International rated Spain between 2001 and 2012. The average value for Spain during that period was 66.67 points with a maximum of 70 points in 2001 and minimum of 61 points in 2009 and (100 being no corruption). In 2011 it was rated 30th least corrupt country in the world According to 2016 results of Corruption Perception Index of Transparency International, Spain ranks 41th place out of 176 countries. Spain is still one of Europe's most corrupt countries.
Political corruption is a large concern in Spain. Political corruption is defined as the action or inaction of one or more real persons managing public resources for their own or a third party's benefit to the detriment of all the citizens they should serve and benefit. Transparency International Global Corruption Barometer 2013 shows that the surveyed households consider political parties, Parliament and the judiciary the most corrupt institutions. However, the occurrence of petty corruption is rare in Spain, according to the Barometer 2013. Several other sources, including World Economic Forum Global Competitiveness Report 2013-2014 and Ernst & Young Fraud Survey 2013, show that bribery and corrupt practises are widespread in businesses in Spain. As suggested in Business Anti-Corruption Portal, anti-corruption strategies should be significantly strengthened at all levels of the government. One example could be to strengthen investigative and prosecution efforts in foreign bribery cases and enforcing existing laws.