Robert Holt is 65 years old and suffers from Alzheimer's and dementia.
The Harris County Sheriff's Office says Robert was last seen around 4 a.m. in the 7200 block of Kings Drive.
Robert was wearing a red shirt and black jean pants. He stands at 5'7" and weighs 145 pounds.
If you know where he is, call the Harris County Sheriff's Missing Persons Unit at (713)755-7427.