Youth and education
Federley was born in Munktorp in Köping Municipality, Västmanland County, but grew up in nearby Kungsör. He did his military service at S1 in Enköping from 1997 to 1998. He later went on to study legal- and political science at Örebro University. He later moved to Jakobsberg and to work as a political editor of the newspaper Norrtelje Tidning.
Federley is openly gay.
Federley joined the Centre Party Youth during the 1994 election, and started a local branch of the organization together with a friend. A year and a half later he became vice chairman of the Centre Party Youth Västmanland district, and the following year chairman of the district (a post he kept until October 2000). In the 1998 election he was elected a member of the municipal council in Kungsör. In the spring of 2000 he was elected vice chairman of the Centre Party Västmanland district (a post he kept until the spring of 2002). In the 2002 election he was the Centre Party candidate to receive most votes in the Västmanland County constituency, but due to the 8%-rule regarding personal votes the mandate instead went to the first name on the list. On October 18, 2002, Federley was unanimously elected new chairman of the Centre Party Youth, succeeding Malin Svensson. He had the post until May 2007, when Magnus Andersson was elected.
In the 2006 election Federley was elected a member of the Riksdag for the Stockholm Municipality constituency, along with the actress Solveig Ternström. He is a member of the Riksdag's Committee on Social Insurance and the OSCE delegation, and a substitute to the Committee on European Union Affairs. He was re-elected in the 2010 election.
Federley was elected Member of the European parliament in the elections held the 25th of May 2014. In the EP he has taken seats as ordinary member of the ITRE-committee where he is also coordinator for ALDE and a seat as substitute in the AGRI-committee. He is vice president for the European parliaments delegation to the Pan African union.
When the Swedish Government announced that it intended to increase the penalty for purchasing sex from six months to one year's imprisonment, effective July 1, 2011,  and debated and voted on this on May 12, 2011, the vote was: For 282 Against 1.  The sole opponent was Federley, however he claimed that attempts were made to prevent him from speaking against the proposal by the Centre Party 
- "Fredrick Federley (c)". Parliament of Sweden. Retrieved 2008-04-06.
- Swedish Politician Blames Drag Alter Ego for Accepting Free Trip, The Advocate
- Skärpt straff för köp av sexuell tjänst. Prop. 2010/11:77 March 8 2011
- Riksdag proceedings May 12 2011
- Federley stoppas från sexköpsdebatt. Expressen May 9 2011
- www.federley.se, official website
- federley.blogspot.com, primary (political) blog
- Federleys andra sida, secondary (more personal) blog
|Chairman of the Centre Party Youth