121. 'Keşf-i Esrār-ı Ulūm ve Mugayyebāt-ı Fuhūm, MS 231Tarih-i Mahmūd Paşa, MS 232' Creator: Unidentified (MS 231, MS 232) Date: n.d. Language: Turkish, Ottoman (1500-1928)
122. 'Kitab-ı Tecvìd, MS 300' Creator: Unidentified Date: 1838 Language: Turkish, Ottoman (1500-1928)
123. 'Kitāb-ı Güzide, MS 379' Creator: Muhammed b. Bāli / محمد بن بالى Date: n.d. Language: Turkish, Ottoman (1500-1928)
124. 'Kitāb-ı Mevāiz, MS 347' Creator: Unidentified Date: n.d. Language: Turkish, Ottoman (1500-1928)
125. 'Kırk Hadis Şerhi, MS 578' Creator: el-Bursevi, İsmail Hakkı b. Mustafa d. 1137/1725 / البروسوي, اسمعيل حقي بن مصطفي Date: 1724 Language: Turkish, Ottoman (1500-1928)
126. 'Lemeat tercümesi, MS 32Risale-i nefs-i natıka, MS 33' Creator: Unidentified (MS 33)""Kiramü'd-din / کرام الدین (MS 32) Date: 1431; n.d. Language: Turkish, Ottoman (1500-1928)
127. 'Lugat-i Ahteri, MS 416 ' Creator: لغت اخترى Date: n.d. Language: Turkish, Ottoman (1500-1928)Arabic
128. 'Lugat-i Ferişte oğlu, MS 180' Creator: "Firişte oğlı 'Abdü’l-latif b. 'Abdü’l-'aziz / فرشته اوغلى عبد اللطيف بن عبد العزيز " Contributor: Copyist: Mûsâ İbni Ali Date: n.d. Language: Turkish, Ottoman (1500-1928)Arabic
129. 'Lugat-i Ferişte oğlu, MS 188' Creator: "Firişte oğlı 'Abdü’l-latif b. 'Abdü’l-'aziz (İbni Firişte İbni Melek) / فرشته اوغلى عبد اللطيف بن عبد العزيز" Date: n.d. Language: Turkish, Ottoman (1500-1928)Arabic
130. 'Lugat-i Ferişte oğlu, MS 319Lugāt Kitābı, MS 320Kitāb-ı Tercümān, MS 321Kitāb-ı Muhammasāt, MS 322' Creator: Unidentified (MS 320MS 321MS 322)""Firişte oğlu 'Abdü’l-latif b. 'Abdü’l-'aziz (İbni Firişte İbni Melek) / فرشته اوغلى عبد اللطيف بن عبد العزيز (MS 319) Date: n.d.; n.d.; n.d.; n.d. Language: Turkish, Ottoman (1500-1928)Arabic
131. 'Lugat-i Müfredāt, MS 223' Creator: Unidentified Contributor: Copyist: Ahmed b. Mustafa (14a) Date: 1678 Language: Turkish, Ottoman (1500-1928)
132. 'Lugatü Müntehab min-es-sıhāh ve’l-Kāmus, MS 149 ' Creator: Unidentified Date: 1536 Language: Turkish, Ottoman (1500-1928)Arabic