Hennessey Law Firm, LLC, located in Creve Coeur, Missouri, is a trusted law firm led by experienced attorney Cynthia M. Hennessey. With over 25 years of experience, Hennessey Law Firm specializes in personal injury, workers’ compensation, and social security cases in Missouri and Illinois.

Cynthia Hennessey is a dedicated lawyer known for her compassionate and effective representation. Whether you have been injured in a car accident, truck accident, or workplace incident, Cynthia Hennessey and her team are here to help you navigate the legal process and fight for the compensation you deserve.

If you are in need of a skilled personal injury attorney in the St. Louis area, look no further than Hennessey Law Firm, LLC. Contact us today for a consultation and let us advocate for your rights.

Personal injury attorney

Matt Julius

4/09/2025

The absolute stress I had prior to hiring Hennessey Law Firm was insane. It was constant miscommunication and getting hassled by my work comp case manager. Once I contacted Hennessey Law Firm, everything went smooth. From that point on it was zero stress and smooth sailing. Consistent contact on major updates, they were able to negotiate a max settlement offer, and actually cared about me and my recovery. I hope to never have to need them again, but if I do I will probably call them before I call 911 they are THAT good!

Tricia Kowalski

3/18/2025

Hennessy Law offices are professional and very thorough. I felt listened to and heard. Stephanie was always on top of things and took care of everything for me. I highly suggest this firm for workman's comp issues! Thank you!

Staci Yara

3/17/2025

I highly recommend Hennessy Law Firm!
I consider myself blessed to have been directed by the good Lord himself to Hennessy Law Firm. From the first call, Stephanie, Alex & the team were kind, understanding and genuinely concerned about me. Their professionalism is top notch - from communicating every step of the way and helping me understand my rights. I couldn’t have been guided by more lovely people, putting my mind at ease and giving me the ability to focus on my health, first. Thank you, Ms. Hennessey, for fighting for me & getting me the settlement I deserved. With such deep appreciation to you and your wonderful team — thank you!