• Pinnularia appendiculata var. major Frenguelli, 1942
• Pinnularia borealis var. major (M. Peragallo & Heribaud in Heribaud) F.W. Mills, 1934 accepted as Navicula borealis var. major M. Peragallo & Héribaud in Héribaud, 1893
• Pinnularia britannica f. major Cleve-Euler, 1955 (uncertain > unassessed)
• Pinnularia caloneiformis f. major Manguin in Bourrelly & Manguin, 1952 (uncertain > unassessed)
• Pinnularia cardinaliculus f. major Manguin, 1958 (uncertain > unassessed)
• Pinnularia divergens f. major Berg, 1945 (uncertain > unassessed)
• Pinnularia divergens f. major Mayer, 1913 (uncertain > unassessed)
• Pinnularia divergens f. major Otto Müller, 1898 (uncertain > unassessed)
• Pinnularia esox f. major Hustedt in Schmidt et al., 1914 (uncertain > unassessed)
• Pinnularia gibba var. major Gutwinski, 1892 (uncertain > unassessed)
• Pinnularia hemiptera var. major Frenguelli, 1953
• Pinnularia inflata var. major Cleve-Euler, 1934 (uncertain > unassessed)
• Pinnularia interrupta f. major Vaulina, 1956 (uncertain > unassessed)
• Pinnularia major (Kützing) Rabenhorst, 1853
• Pinnularia major Dippel, 1905 (uncertain > unassessed)
• Pinnularia major sensu W. Smith, 1853 (uncertain > unassessed)
• Pinnularia major f. constricta Berg, 1945 (uncertain > unassessed)
• Pinnularia major f. crassa Gutwinski, 1890 (uncertain > unassessed)
• Pinnularia major f. crucigera Mayer, 1913 (uncertain > unassessed)
• Pinnularia major f. genuina Mayer, 1913 (uncertain > unassessed)
• Pinnularia major f. hankensis Skvortzow, 1929 (uncertain > unassessed)
• Pinnularia major f. heroina (Schmidt in Schmidt et al.) Cleve, 1895 accepted as Navicula heroina A.W.F.Schmidt, 1876
• Pinnularia major f. hinganica Skvortzov, 1976 (uncertain > unassessed)
• Pinnularia major f. hyalina (Hustedt) Hustedt, 1930 accepted as Pinnularia major var. hyalina (Hustedt) Skabichevskii, 1942
• Pinnularia major f. interrupta Rehakova, 1980 (uncertain > unassessed)
• Pinnularia major f. linearis (Cleve) Dippel, 1905 (uncertain > unassessed)
• Pinnularia major f. major (Kützing) Rabenhorst, 1853 accepted as Frustulia major Kützing, 1833
• Pinnularia major f. manschurica Skvortzow, 1928 (uncertain > unassessed)
• Pinnularia major f. minor Cleve-Euler, 1948 (uncertain > unassessed)
• Pinnularia major f. minor Skvortzow, 1937 (uncertain > unassessed)
• Pinnularia major f. neglecta (Mayer) Hustedt, 1930 accepted as Pinnularia major var. neglecta Mayer, 1913
• Pinnularia major f. parva Cleve-Euler, 1932 (uncertain > unassessed)
• Pinnularia major f. scabrosa Cleve-Euler, 1955 (uncertain > unassessed)
• Pinnularia major f. semicruciata A. Mayer, 1911 (uncertain > unassessed)
• Pinnularia major f. subacuta (Ehrenberg) Cleve, 1895 accepted as Pinnularia subacuta Ehrenberg, 1854
• Pinnularia major f. subconstricta Mayer, 1913 (uncertain > unassessed)
• Pinnularia major f. transversa (Schmidt in Schmidt et al.) Cleve, 1891 accepted as Navicula transversa A.Schmidt, 1876
• Pinnularia major f. tropica Skvortzow, 1967 (uncertain > unassessed)
• Pinnularia major f. typica Cleve-Euler, 1948 (uncertain > unassessed)
• Pinnularia major var. abreviata Pantocsek, 1913 (uncertain > unassessed)
• Pinnularia major var. ambigua Manguin in Bourrelly & Manguin, 1952 (uncertain > unassessed)
• Pinnularia major var. andesitica (Pantocsek) Ross, 1950 accepted as Navicula major var. andesitica Pantocsek, 1892
• Pinnularia major var. angulata (Lauby) F.W. Mills, 1934 accepted as Navicula major var. angulata Lauby, 1910
• Pinnularia major var. antiqua Lupikina, 1984 (uncertain > unassessed)
• Pinnularia major var. asymmetrica Cleve, 1895 (uncertain > unassessed)
• Pinnularia major var. baicalensis Skvortzow & Meyer, 1928 (uncertain > unassessed)
• Pinnularia major var. biconstricta Cleve-Euler, 1932 (uncertain > unassessed)
• Pinnularia major var. capitata Hustedt in Schmidt et al., 1934 (uncertain > unassessed)
• Pinnularia major var. clavata Hustedt in Schmidt et al., 1934 (uncertain > unassessed)
• Pinnularia major var. conjugata (Turpin) Rabenhorst, 1864 accepted as Bacillaria conjugata P.J.F.Turpin
• Pinnularia major var. convergens Meister, 1912 (uncertain > unassessed)
• Pinnularia major var. convergentissima (Heribaud) McCall, 1933 accepted as Navicula major var. convergentissima Héribaud, 1903
• Pinnularia major var. crassa Brébisson in Rabenhorst, 1864 (uncertain > unassessed)
• Pinnularia major var. crassa Rabenhorst, 1864 (uncertain > unassessed)
• Pinnularia major var. curta Anisimova, 1951 (uncertain > unassessed)
• Pinnularia major var. distinguenda (Cleve) F.W.Mills, 1934 † accepted as Pinnularia viridis var. distinguenda Cleve, 1891 †
• Pinnularia major var. dokturowskii Skvortzov, 2012 (uncertain)
• Pinnularia major var. dubia McCall, 1933 (uncertain > unassessed)
• Pinnularia major var. elliptica Mayer, 1916 (1917) (uncertain > unassessed)
• Pinnularia major var. elongata Skvortzov, 2012 (uncertain)
• Pinnularia major var. flexuosa Cleve-Euler, 1948
• Pinnularia major var. fragilis (Seczkina, 1960) Skvortzov, 2012 (uncertain)
• Pinnularia major var. heribaudii McCall, 1933 (uncertain > unassessed)
• Pinnularia major var. horrida (M.Peragallo & Héribaud-Joseph) F.W.Mills, 1934 accepted as Navicula major var. horrida M.Peragallo & Héribaud-Joseph
• Pinnularia major var. hustedti Meister, 1937 (uncertain > unassessed)
• Pinnularia major var. hyalina (Hustedt) Skabichevskii, 1942 (uncertain > unassessed)
• Pinnularia major var. kuetzingii Cleve-Euler, 1932 (uncertain > unassessed)
• Pinnularia major var. lacustris Meister, 1912 (uncertain > unassessed)
• Pinnularia major var. latefasciata (Ostrup in Heribaud et al.) F.W. Mills, 1934 accepted as Navicula major var. latefasciata Østrup in Héribaud et al., 1920
• Pinnularia major var. leptogongyla (Ehrenberg) Mayer, 1913 accepted as Navicula leptogongyla Ehrenberg, 1843
• Pinnularia major var. major Mayer, 1912 (uncertain > unassessed)
• Pinnularia major var. medioconstricta Bleisch ex Rabenhorst, 1848-1860 (uncertain > unassessed)
• Pinnularia major var. neglecta Mayer, 1913 (uncertain > unassessed)
• Pinnularia major var. nipponica Skvortzow, 1936 (uncertain > unassessed)
• Pinnularia major var. pagesii (Heribaud in Heribaud et al.) F.W. Mills, 1934 accepted as Navicula major var. pagesii Héribaud in Héribaud et al., 1920
• Pinnularia major var. paludosa Meister, 1912 (uncertain > unassessed)
• Pinnularia major var. pulchella Boyer, 1916 † (uncertain > unassessed)
• Pinnularia major var. sagensis Skvortzow, 1937 (uncertain > unassessed)
• Pinnularia major var. sendaiensis Hustedt ex Simonsen, 1987 (uncertain > unassessed)
• Pinnularia major var. sendaiensis Hustedt in Schmidt et al., 1934 (uncertain > unassessed)
• Pinnularia major var. shantungensis Skvortzow, 1937 (uncertain > unassessed)
• Pinnularia major var. sibirica Skvortzov, 2012 (uncertain)
• Pinnularia major var. sinica Skvortzov, 2012 (uncertain)
• Pinnularia major var. skabitschewskii Skvortzov, 2012 (uncertain)
• Pinnularia major var. sublinearis Skvortzov, 1976 (uncertain > unassessed)
• Pinnularia major var. turfosa Skvortzov, 1971 (uncertain > unassessed)
• Pinnularia major var. turgidula Cleve, 1895 (uncertain > unassessed)
• Pinnularia major var. uligenosa Meister (uncertain > unassessed)
• Pinnularia major var. woerthensis A.Mayer, 1931 (uncertain > unassessed)
• Pinnularia microstauron f. major Hustedt, 1910 (uncertain > unassessed)
• Pinnularia microstauron var. major (Hustedt) Cleve-Euler, 1955 (uncertain > unassessed)
• Pinnularia microstauron var. major Frenguelli & Cordini, 1937 †
• Pinnularia nobilis var. major (Kützing) J.-J.Brun (uncertain > unassessed)
• Pinnularia polyonca f. major Skvortzow, 1946 (uncertain > unassessed)
• Pinnularia polyonca var. major Skvortzow, 1929 (uncertain > unassessed)
• Pinnularia sublinearis var. major Manguin in Allorge & Manguin, 1941 (uncertain > unassessed)
• Pinnularia undula var. major (A.Schmidt) K.Krammer, 2000 † accepted as Navicula legumen f. major A.Schmidt, 1875 †
• Pinnularia viridis var. major Cleve in Tempère & Peragallo, 1909 (uncertain > unassessed)