Walang Sugat (literally, "no wound" or "unwounded")[1] is an 1898 Tagalog-language zarzuela (a Spanish lyric-dramatic genre that includes music, singing, and poetry) written by Filipino playwright Severino Reyes. The music for the original version of the play was written by Filipino composer Fulgencio Tolentino.Walang Sugat was written when the zarzuela became a "potent means" of expressing Filipino nationalism during the Spanish Occupation of the Philippines that followed three centuries of Spanish rule.

Apart from the political themes, Walang Sugat is also a love story.Towards the end of the Philippine Revolution, Tenyong leaves Julia to become a member of the Katipunan. In his absence, Julia is continuously pressured by Miguel who is portrayed as an American; she succumbs when she stopped receiving news from Tenyong. As Julia and Miguel are being wed, Tenyong arrives to interrupt the service, and is dying of injuries sustained in combat. Tenyong mentions his dying wish to Julia, but the playfeatures an "unexpected twist" that shows how Tenyong is able to outwit the persons separating him from Julia, the love of his life.