William Byrnes Associate Circuit Judge

William Byrnes Associate Circuit Judge Judge Byrnes, a Wentzville resident, was appointed Associate Circuit Judge in St. Charles County in 2025.

Prior to the bench, he served clients across Missouri through the Byrnes Law Firm, earning a reputation for compassion, tenacity, and excellence. Byrnes Law Firm: Attorneys in St Louis and St Charles, Missouri specializes in Criminal Defense, Family Law, and Personal Injury. Named as one of the top DWI defense attorneys awarded by the NAFDD, we handle cases including DUI and DWI, drugs, fraud, ste

aling, assault and other serious crimes. Our experience and dedications to our client's rights make us the best choice for an attorney in Saint Louis. If you or a loved one are in need of legal services, contact our firm for a free consultation today!

11/11/2025
05/29/2024

This is my wife, Tricia Byrnes - State Representative. She has fought tirelessly for the people of Missouri since 2017 after finding out about Coldwater Creek, Latty Avenue, Weldon Spring Site, West Lake Landfill and both Mallinkrodt Uranium Enrichment production facilities one in Downtown STL and one that operated until it was abandoned and leaked into the environment for decades next to Francis Howell.

Once elected to her first term last year, her fight quickly escalated to DC because it is not acceptable in America to poison children, document it, hide that truth from the public and then deny them a path to healthcare and health screening.

She is passionate about helping people and earned the title Champion of School and Community Safety this year in the Missouri House because she finds problems and works to get them solved.

I would love if you would follow her page and show support when you can. Thanks

02/10/2024
Dear Friends,Trish Byrnes and I are not drinking tonight. If ANYONE needs rides from anywhere local (Wentzville/St. Char...
12/31/2018

Dear Friends,

Trish Byrnes and I are not drinking tonight. If ANYONE needs rides from anywhere local (Wentzville/St. Charles County) we are available. We won’t say a word to anyone. Let’s just keep everyone safe.

If you know you won’t call us, please set up Uber, Lyft or save the number of a local cab in your phone now.

Happy New Year 2019!✌

Stay Safe,
Bill Byrnes

09/08/2017

Judge Byrnes, a Wentzville resident, was appointed Associate Circuit Judge in St. Charles County in 2025.

Prior to the bench, he served clients across Missouri through the Byrnes Law Firm, earning a reputation for compassion, tenacity, and excellence.

02/04/2017

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St. Charles, MO
63301

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