• Chaetomorpha Kützing, 1845
• Chaetomorpha adrianii Feldmann, 1936
• Chaetomorpha aerea (Dillwyn) Kützing, 1849
• Chaetomorpha aerea f. versata Heydrich, 1894
• Chaetomorpha akineta M.A.Sahito, Z.A.Nizamani & S.M.Leghari
• Chaetomorpha antennina (Bory) Kützing, 1847
• Chaetomorpha antennina var. stolonifera (W.R.Taylor) M.J.Wynne, 1986
• Chaetomorpha atrovirens W.R.Taylor, 1937 accepted as Chaetomorpha picquotiana Montagne ex Kützing, 1849
• Chaetomorpha auricoma (Suhr) Blair, 1983
• Chaetomorpha baicalensis K.I.Meyer [C.I.Meyer], 1922
• Chaetomorpha baicalensis var. curta Skabichevskii, 1936 accepted as Chaetomorpha curta (Skab.) Skabitschevsky, 1970
• Chaetomorpha baltica Kützing accepted as Chaetomorpha linum (O.F.Müller) Kützing, 1845
• Chaetomorpha bangioides E.Y.Dawson, 1950
• Chaetomorpha basiretrorsa Setchell, 1926
• Chaetomorpha billardieri Kützing, 1847
• Chaetomorpha brachygona Harvey, 1858
• Chaetomorpha brachygona var. crassipellita W.R.Taylor, 1945
• Chaetomorpha breviarticulata (Zanardini) Frauenfeld, 1855 (uncertain)
• Chaetomorpha breviarticulata Hauck, 1884
• Chaetomorpha californica Collins, 1900
• Chaetomorpha cannabina (Areschoug) Kjellman, 1889
• Chaetomorpha capillaris (Kützing) Børgesen, 1925
• Chaetomorpha capillaris f. crispa Feldmann
• Chaetomorpha capillaris var. crispa Schousboe ex Feldmann, 1937 accepted as Chaetomorpha mediterranea var. crispa (Feldmann) Gallardo et al., 1993 accepted as Chaetomorpha ligustica (Kützing) Kützing, 1849
• Chaetomorpha cartilaginea M.Howe, 1914
• Chaetomorpha catalinae Dawson, 1949 accepted as Urospora penicilliformis (Roth) Areschoug, 1866
• Chaetomorpha chapmanii Molinari & Guiry, 2021
• Chaetomorpha chelonum Collins, 1907 accepted as Arnoldiella chelonum (Collins) C.Boedeker, 2012
• Chaetomorpha chelonum var. japonica Yendo, 1920
• Chaetomorpha chlorotica (Montagne) Kützing, 1849 accepted as Chaetomorpha linum (O.F.Müller) Kützing, 1845
• Chaetomorpha clavata Kützing, 1847
• Chaetomorpha clavata var. torta Farlow ex Collins, 1909 accepted as Chaetomorpha spiralis Okamura, 1903
• Chaetomorpha coliformis (Montagne) Kützing, 1849
• Chaetomorpha crassa (C.Agardh) Kützing, 1845
• Chaetomorpha crassa f. tenuior Schiffner, 1938 accepted as Chaetomorpha linum (O.F.Müller) Kützing, 1845
• Chaetomorpha curta (Skab.) Skabitschevsky, 1970
• Chaetomorpha dalmatica (Kuutzing) Kützing, 1845
• Chaetomorpha darwinii (J.D.Hooker & Harvey) Kützing, 1849 accepted as Chaetomorpha coliformis (Montagne) Kützing, 1849
• Chaetomorpha dubyana Kützing, 1853
• Chaetomorpha elongata V.J.Chapman, 1956
• Chaetomorpha exigua Schiffner, 1931
• Chaetomorpha exilissima E.R.Parodi & E.J.Cáceres, 1996
• Chaetomorpha exposita (Børgesen) E.Y.Dawson, 1954
• Chaetomorpha fibrosa (Kützing) Kützing, 1843 (uncertain)
• Chaetomorpha firma Levring, 1941
• Chaetomorpha geniculata Montagne, 1856
• Chaetomorpha gracilis Kützing, 1845
• Chaetomorpha henningsii P.G.Richter, 1893
• Chaetomorpha herbipolensis Lagerheim, 1887
• Chaetomorpha herbipolensis f. lagerheimii De Toni, 1888
• Chaetomorpha implexa Feldmann, 1954 (uncertain)
• Chaetomorpha implexa Kützing, 1849 accepted as Chaetomorpha implicata Kützing, 1847
• Chaetomorpha implicata Kützing, 1847
• Chaetomorpha indica (Kützing) Kützing, 1849
• Chaetomorpha inflata Kützing, 1849
• Chaetomorpha intestinalis Kützing, 1849
• Chaetomorpha irregularis (Zaneveld) M.Cormaci, G.Furnari & G.Alongi, 2014
• Chaetomorpha javanica Kützing, 1847
• Chaetomorpha kellersii M.A.Howe, 1932
• Chaetomorpha kerguelensis Levring, 1944
• Chaetomorpha liaodongensis L.Luan & R.Ding, 2013
• Chaetomorpha ligustica (Kützing) Kützing, 1849
• Chaetomorpha linoides Kützing, 1847
• Chaetomorpha linum (O.F.Müller) Kützing, 1845
• Chaetomorpha linum f. aerea (Dillwyn) F.S.Collins accepted as Chaetomorpha linum (O.F.Müller) Kützing, 1845
• Chaetomorpha linum f. brachyarthra (Kützing) Børgesen, 1935
• Chaetomorpha linum var. brachyarthra Schiffner, 1916 accepted as Chaetomorpha linum (O.F.Müller) Kützing, 1845
• Chaetomorpha litoralis Skabitschevsky, 1931 accepted as Cladochaete litoralis (Skabitschevsky) C.Meyer & Skabitschevsky, 1965
• Chaetomorpha litorea Harvey, 1858
• Chaetomorpha longiarticulata Harvey, 1858
• Chaetomorpha macrotona Suringar, 1867
• Chaetomorpha mauritiana Kutz.
• Chaetomorpha mawsonii A.H.S.Lucas, 1919
• Chaetomorpha media (C.Agardh) Kützing, 1849 accepted as Chaetomorpha antennina (Bory) Kützing, 1847
• Chaetomorpha media var. stolonifera W.R.Taylor, 1974
• Chaetomorpha mediterranea (Kützing) Kützing, 1849
• Chaetomorpha mediterranea var. crispa (Feldmann) Gallardo et al., 1993 accepted as Chaetomorpha ligustica (Kützing) Kützing, 1849
• Chaetomorpha melagonium (F.Weber & D.Mohr) Kützing, 1845
• Chaetomorpha melagonium f. rupicola Areschoug ex Kjellman, 1883 accepted as Chaetomorpha melagonium (F.Weber & D.Mohr) Kützing, 1845
• Chaetomorpha microscopica K.I.Meyer, 1927 accepted as Chaetocladiella microscopica (K.I.Meyer) K.I.Meyer & Skabitschevsky, 1968
• Chaetomorpha minima Collins & Hervey, 1917
• Chaetomorpha moniliformis Skabitschevsky, 1936
• Chaetomorpha moniligera Kjellman, 1897
• Chaetomorpha monilina (Zanardini) Zanardini
• Chaetomorpha natalensis (Hering) De Toni, 1889
• Chaetomorpha natalensis f. exposita Børgesen, 1948 accepted as Chaetomorpha exposita (Børgesen) E.Y.Dawson, 1954
• Chaetomorpha nodosa Kützing, 1849
• Chaetomorpha norvegica Leliaert & Rueness, 2009
• Chaetomorpha obscura Kjellman, 1880
• Chaetomorpha ochlophobians Kraft, 2007
• Chaetomorpha okamurae S.Ueda, 1932 accepted as Basicladia okamurae (S.Ueda) Garbary, 2010
• Chaetomorpha olneyi Harvey, 1858
• Chaetomorpha pachynema (Montagne) Kützing, 1847
• Chaetomorpha pacifica Kützing, 1849
• Chaetomorpha pallida V.J.Chapman, 1956
• Chaetomorpha pallida Zanardini ex Fraunfeld, 1855
• Chaetomorpha patentiramea (Mont) Kutz.
• Chaetomorpha paucitatis Gilbert, 1965 accepted as Chaetomorpha aerea (Dillwyn) Kützing, 1849
• Chaetomorpha peruviana W.R.Taylor, 1947 accepted as Cladophora peruviana (W.R.Taylor) E.Y.Dawson, Acleto & Foldvik, 1964
• Chaetomorpha philippinensis Leliaert, 2011