Up until today, there have been 2 lawsuits against God.
Here they are, explained.

In 2007, Nebraska State Senator, Ernie Chambers sued God to prove a point. He wanted to show that anyone can sue another person for almost any reason. In Chambers' suit against God he claims that God has made terroristic threats against both him and his constituents and has caused "widespread death, destruction and terrorization of millions upon millions of the Earth's inhabitants." In addition, he was suing him for causing "fearsome floods … horrendous hurricanes, terrifying tornadoes."

In the second lawsuit, a Romanian prisoner sued God claiming that God failed to keep him from the Devil. "God received different material valuables from me, as well as prayers in exchange for promises of a better life. In reality, this did not happen – I found myself in the devil's hands," Pavel M said