Ulf Hjalmar Kristersson (born 29 December 1963) is a Swedish Moderate Party politician who has served as Leader of the Opposition and Leader of the Moderate Party since October 2017.
He has been a Member of the Riksdag (MP) for Södermanland County since 2014 and previously from 1994 to 2000 for Stockholm County.
He previously served as Minister for Social Security from 2010 to 2014 and Chairman of the Moderate Youth League from 1988 to 1992.On 11 December 2014, he was appointed Shadow Finance Minister of the Moderate Party and economic policy spokesperson.
On 1 September 2017, Kristersson announced he was running for the party leadership of the Moderate Party after Anna Kinberg Batra stepped down.