Martín Landaluce Lacambra (born 8 January 2006) is a Spanish tennis player.

Next, he received a wildcard for the main draw at the 2023 Mutua Madrid Open making his Masters 1000 debut.

He won his first ITF World Tennis Tour title on 18 February 2024 in Vila Real de Santo Antonio, Portugal, where he defeated Khumoyun Sultanov in the final.

[5][6] In the next round he was defeated by 16th seed Ben Shelton in straight sets in 76 minutes.

[8] Landaluce made his Grand Slam debut after qualifying into the main draw of the 2025 Australian Open.