Pedro Joseph de Lemos (25 May 1882 – 5 December 1954) was an American painter, printmaker, architect, illustrator, writer, lecturer, museum director and art educator in the San Francisco Bay Area.

He became prominent in the field of art education, and he designed several unusual buildings in Palo Alto and Carmel-by-the-Sea, California.

[citation needed] In 1904 he and his brother John started an engraving firm in San Francisco, which was destroyed in the 1906 earthquake and fire.

In March 1922 he presented at Stanford the first solo exhibition of his own work, a collection of pastels, and in August 1922 an article about him was featured in the American Magazine of Art.

[11] The 1922 book Color Cement Handicraft by Pedro and Reta Lemos, with an emphasis on decorative tiles, was reprinted in 2007 as Arts & Crafts Era Concrete Projects.

[15] In 1928, after meeting with the owners of the property, the Merners, Pedro and his wife Reta became involved in the founding, design and administration of the Allied Arts Guild in Menlo Park, California.

[2][16] He and his wife had already engaged in developing similar groups of art studios and shops in Carmel and Palo Alto.

[7] The Spanish Colonial style architecture for the six Allied Arts Guild buildings were designed by Pedro de Lemos and Gardner Dailey (1895-1967).

He built the Garden Shop Addition in 1931, with a three-sided window bay, Carmel stone, and shingled roof, that blends in with the other two buildings.

[20] In August 1927, de Lemos was elected the first president of the Carmel Art Association in Carmel-by-the-Sea, California, but refused to attend most of the meetings in a bitter dispute over juried exhibitions.