Seaweeds are important marine life. It has several uses people can avail of. The taxonomy of seaweeds plays an important component in the successful bid for its proper management, conservation, and preservation. The study was on seaweeds species found in the three islets of Palompon, Leyte. The investigation was on chlorophytes (green seaweeds), phaeophytes (brown seaweeds), and rhodophytes (red seaweeds). The descriptive method was used. Samples were collected randomly from the sampling sites where the seaweeds thrive. Twenty-five species (25) of seaweeds species were found along with the Tres Marias of Palompon, Leyte. Ten (10) species of Chlorophytes, four (4) species of Phaeophytes, and eleven (11) species of Rhodophytes. Seaweeds species vegetation in Cabgan islet is much better than Taboc islet and slightly better than Gumalac islet. Of the twenty-five species gathered in Tres Marias islets, both in the intertidal and subtidal zones, only seven (7) of them are available in Taboc islet, twenty-two (22) in Gumalac islet, and twenty (20) in Cabgan islet. Seaweeds bear interesting prospects for added income to alleviate the economic life of the fishermen in the coastal barangays of Palompon, Leyte.