The Jalesveva Jayamahe Monument (Indonesian: Monumen Jalesveva Jayamahe, abbreviated Monjaya) is a monument located in Semampir, Surabaya, East Java, Indonesia near the Port of Tanjung Perak.

It is a statue of an Indonesian Navy officer wearing a Ceremonial Service Dress, complete with his sword of honor.

[1] The Jalesveva Jayamahe Monument represents the nation's future generation's optimism toward the accomplishment of the Indonesian dream.

[2] The monument's name is taken from the Indonesian Navy's motto in Sanskrit Jalesveva Jayamahe which means Our Glory is at the Seas, It is also related to Indonesian Navy's Motto Jalesveva Jayamahe – "On The waters, We are victorious" (Jalesu eva – in the waters Jayamahe – we win).

Other than a monument, this building also functions as a lighthouse for ships on the surrounding sea.