Yes. "While Enterprise transported ambassadors to the Babel Conference of 2268, Kirk was stabbed, puncturing his left lung, by an Orion agent disguised as an Andorian. (TOS: "Journey to Babel")"
Jean-Luc Picard was also stabbed as an Ensign by a Nausicaan, as shown in the TNG episode 'Tapestry'.
Picard was also stabbed by Jono in the Star Trek: The Next Generation episode "Suddenly Human". ProfessorTrek 01:27, July 1, 2011 (UTC)