Timothy Patrick Brennan (born ) is an American attorney and politician who has represented the 29th District in the Pennsylvania House of Representatives as a Democrat since 2023.
Brennan is a graduate of Nativity BVM High School. He graduated from Ursinus College in 2000. He later attended Trinity University in Ireland and Charles University in Prague, Czech Republic. He became certified in law and government from Widener University School of Law in 2003.
In 2015, Brennan was elected to represent the Second Ward on the Borough Council of Doylestown, Pennsylvania, where he served from 2016 until December 2022.
In 2018, Brennan unsuccessfully sought the Democratic nomination for the 143rd District seat in the Pennsylvania House of Representatives, losing to Wendy Ullman by 55 votes.
In 2022, Brennan won the election to represent the 29th District (which included much of the former 143rd), defeating the Republican and Independent candidates. He won re-election in 2024 with 55.6% of the vote.