Vine Colby McCasland (March 11, 1886 – September 1, 1971) was an American essayist and poet for The Potters artistic group in St. Louis, Missouri, in the early 20th century.

After the Potters disbanded, she became a journalist and writer of short stories, and engaged in a career of sociological and economy study.

[3] Celestia Rice Colby's diaries were published in 2006 under the title Circumstances are Destiny: An Antebellum Woman's Struggle to Define Sphere, edited by Tina Stewart Brakebill.

In 1903 Vine won the elocutionary contest of the members of the Central High School Girls' Literary Society for her recital of The Forsaken Merman.

Her friend Sara Teasdale, also a member of the Potters, selected Coby's poem "The Rainbow" for inclusion in The Answering Voice: One Hundred Love Lyrics by Women (1917).

[16] After her marriage, as Vine McCasland, she wrote the poem "Circus" which was included in a 1920 anthology and later selected by the British Council.