Lyman Fessenden Walker (1836–1920)[1] was an American shipwright during a prolific period at Yarmouth Harbor in Maine.

[2][3] His shipyard was one of the four major ones during the town's peak years of 1850–1875.

[4] His shipyard launched forty vessels of all sizes.

[1] After beginning as a shipwright, in 1841 he was recognized as a master builder.

[1] This United States biographical article is a stub.