Sunpyre (real name Leyu Yoshida) is a fictional character of the Marvel Universe associated with the X-Men. She is the sister of Sunfire.

Leyu Yoshida and her brother Shiro were born to a mother who suffered radiation poisoning due to exposure to the atomic bombing of Hiroshima, Japan. As a result, she and her brother were born mutants, possessing identical powers. Her brother would go on to be the well-known Japanese superhero Sunfire.

Leyu first appeared, during the Eve of Destruction storyline, when she joined the X-Men for a single mission, to help fight Magneto. She went in place of her brother, who was unavailable at the time.

Banshee later requested her to join his X-Corps (again replacng Sunfire, who didn't want to join). She served with the team until she was killed when members of the Brotherhood of Evil Mutants hijacked the group.

An extra-dimensional Sunpyre later appeared as part of Big Hero Six in Alpha Flight vol. 3 #9. Fellow teammate Honey Lemon pulled Sunpyre out of Lemon's Power Purse, resulting in Sunpyre worshipping Honey Lemon as a goddess and Sunpyre joining the team. Sunpyre and Ebon Samurai were both created to fill in the void left by Sunfire and Silver Samurai, who were being used elsewhere at the time.

Scott Lobdell clarified the relationship of Honey Lemon and Sunpyre in the Marvel Teams Handbook 2005.

• The second Sunpyre's profile at the Appendix to the Handbook of the Marvel Universe