Joseph Lewis Clark (January 15, 1949 – May 2, 2006) was an American murderer executed by the State of Ohio.

[1] When Clark entered a Toledo gas station at approximately 9:00 p.m. on January 13, 1984, he had his .32 caliber revolver drawn.

The psychiatrist testified that Clark's impaired mental condition would have interfered with his ability to make choices in an informed and reasonable manner and would have rendered him more susceptible to pressure or duress from others.

Following the suppression hearing, the state trial court determined that Clark voluntarily and knowingly waived his right against self-incrimination.

It took the execution team twenty-two minutes to find a vein in Joseph Clark's arm to insert the catheter.

The team tried to find another vein for thirty minutes, while witnesses heard "groans, screams and guttural noises".