El Neis de Macuira es una unidad metamorfica Paleozoica que aflora en las serranias de Simarua, Jarara y Macuira, Alta Guajira. Se trata de un conjunto litologico que sufrio metamorfismo bajo condiciones de P-T en la facies anfibolita y consta de neises anfibolicos y cuarzo-feldespaticos, anfibolitas, esquistos, pegmatitas, rocas calco-silicaticas y marmoles, con evidencias de migmatizacion en neises y anfibolitas. En la unidad se observan cinco foliaciones (S1-5) y tres eventos de plegamiento (F1-3) interpretados como producto de dos eventos metamorficos desarrollados en un gradiente metamorfico barroviano progresivo con relaciones P-T intermedias, y relacionados con tectonica de colision continental. La unidad es importante en el entendimiento de la evolucion tectonica de la Alta Guajira y el Caribe debido a que registra diferentes fases deformativas pre-, sin- y post-migmatiticas que podrian relacionarse con diferentes episodios tectonicos: el primero relacionado con la colision de Laurasia y Gondwana (Orogenia Alleghaniana - Paleozoico Tardio) y el segundo relacionado con la evolucion de la Placa Caribe (Orogenia Andina - Meso a Cenozoico). Palabras clave: Migmatitas, Deformacion, Orogenia Alleghaniana, Alta Guajira, Colombia MACUIRA GNEISS: TECTONIC EVOLUTION OF THE PALEOZOIC METAMORPHIC ROCKS, ALTA GUAJIRA – COLOMBIA ABSTRACT The Macuira Gneiss is a Paleozoic metamorphic unit that outcrops in the Simarua, Jarara and Macuira ranges, Alta Guajira. It is composed by a lithologies metamorphosed under amphibolite facies P-T conditions and consist of amphibolitic and quartz feldspathic gneisses, amphibolites, schists, pegmatites, calc-silicated rocks and marbles, with migmatization evidences in gneisses and amphibolites. Five foliations (S1-5) and three folding events (F1-3) were identified and interpreted as product of two metamorphic events, developed in a progressive barrovian metamorphic gradient of intermediate pressure with intermediate P-T ratio, interpreted as product of continental collision tectonics. This unit is important in understanding of the tectonic evolution of the Alta Guajira and Caribbean because it records different deformational phases pre-, syn- and post-migmatitic, that could be related with different tectonic episodes: the first associated with the collision between Laurasia and Gondwana (Alleghanian Orogeny - Late Paleozoic), and the second related with the Caribbean Plate evolution (Andean Orogeny - Meso-Cenozoic). Keywords: Migmatites, Deformation, Alleghanian orogeny, Alta Guajira, Colombia.