The Commissioner for Competition is the member of the European Commission. The current commissioner is Neelie Kroes (ALDE).

The portfolio has responsibility for such matters as commercial competition, company mergers, cartels, state aid and anti-trust law. It became the sole merge authority for the European Economic Area in September 1990.

The Competition Commissioner is one of the most powerful positions in the Commission and is notable in effecting global companies. For example notably preventing the merge of two US companies, General Electric and Honeywell, in 2001. In 2007 Neelie Kroes was the only Commissioner to make Forbes list of the 100 most powerful women, she held position 59.