Is it illegal for someone else to use your address without your permission in Texas?

Yes, it can be illegal for someone to use your address without your permission in Texas, depending on the context. This could fall under various laws, such as fraud or identity theft if it's used to deceive others or obtain benefits. Additionally, unauthorized use of your address for legal documents or registrations can lead to civil liability. If you suspect misuse, it's advisable to consult with a legal professional.