...which makes me wonder if Picard has a similar meaning too....
According to this and this: Picard was named after Auguste and/or Jean Felix Piccard.
Very little etymology was involved.
...It is no coincidence that the captain in Star Trek: The Next Generation is named Jean Luc Picard. According to the producer of Star Trek, Captain Picard was named after Auguste Piccard’s twin brother Jean who also did pioneering work in scientific ballooning and in exploring the ocean depths. In 1934, Jean Piccard and his wife Dr. Jeannette Piccard (a chemist), set a world altitude record when they piloted their gondola to a height of 57,579 feet (17,550m) above sea level. Jeannette Piccard became the first woman to ascend into the stratosphere. The gondola of one of their balloons is on display at the Chicago Museum of Science and Industry.