There is no particular reason to believe so. All you can say is that he was not a Bible literalist. Outside his researches in physics, I have come across nothing about his religious beliefs. He claimed that his views did not contradict those passages in the Bible which it was claimed to. For example, the Bible saya the sun rises and sets. He would say that it indeed does so, and he has explained how, whereas his opponents said that he contradicted this verse when he said the earth rotates.

He was catholic in name; probably to be socialy acceptable and not shame the family. However, deep donw inside, yes, he was probably an atheist.

I don't think he was an atheist, he just freely spoke out about one thing about the church, and he was quickly hated and charged with treason. The church back then wasn't very nice.

After what the church put him through, I would think he would be.

No. He was a devout Catholic and a friend of the Pope. Although atheists would have you believe otherwise. http://www.notablebiographies.com/Fi-Gi/Galileo.html "In 1638 Galileo's Two New Sciences was printed in Leiden, Holland. It gave a geometrical (relating to points, lines, angles, and surfaces) description of motion, partly because such an approach led to a close match with known data. Galileo believed that the universe was structured along the patterns of geometry, the product of a Creator who had planned everything according to weight, measure, and number. This religious belief is possibly Galileo's greatest quality. It was best stated in the Dialogue, when he described the human mind as being the most excellent product of the Creator because it could recognize mathematical truths."

No he was a religious man, christian maybe catholic, I think

Considering that he'll never let you go, no matter how many times you say his name, that sounds more like a fundy move.

NO his freind was the very pope that put him on house arrest!

No, all indications are that he was a good Catholic. His daughter was a nun, he had been a friend of the Pope and so forth. Even the cardinal who put him on trial, Robert Bellarmine, wrote that his ideas made "excellent good sense". But dogma said that the Earth was the centre of the Universe. The church was still fighting Protestants then so it could not allow dissent in the ranks. Galileo's problem was that he had no solid evidence. He had seen the moons of Jupiter going round it but that did not prove the Earth orbited the Sun. His system did not produce the accurate predictions of the planet's positions that the highly refined Ptolemaic system did, so that was a strike against him too. According to one account I have read, actual proof that the planets orbited the Sun did not come until the early 1700s when a London astronomer took thousands of accurate measurements of the positions of the planets and corrected them for the distortion caused by the Earth's atmosphere, which he estimated from simultaneous readings of temperature and pressure. It seems these measurements clinched it. Until then, the theory that the Earth etc orbited the Sun was just that, a theory, lots of evidence but no actual proof.