Louise Morgan Smith Sill (December 18, 1867 – March 31, 1961) was an American poet, writer, translator, and editor.

[2][3] At the time of her birth, her father was the United States ambassador to Hawai'i, then an independent kingdom.

[4] Sill wrote poems that appeared in several major magazines, including Scribner's and The Atlantic.

[5][6][7] "Almost everyone writes nowadays," wrote one reviewer of her 1906 collection In Sun and Shade, "but few have written anything very much better in serious poetry than Louise Morgan Sill.

[2] She lived in Paris for much of her adult life,[18] and died in 1961, at the age of 93, in West Palm Beach, Florida.