There are 64 titles that begin with the letter X
- X - Ray Spectrometry (ISSN: 0049-8246, 1097-4539)
- X's & O's (ISSN: 1322-3747, )
- X-Acoustics: Imaging and Sensing (ISSN: 2353-0634, )
- X-Ray Optics and Instrumentation (ISSN: 1687-7632, 1687-7640)
- X-ray structure analysis online (ISSN: , 1883-3578)
- X-Rite, Incorporated MarketLine Company Profile (ISSN: )
- X-tra (ISSN: 1937-5069, )
- X.Y.ZEP (ISSN: 1276-4760, )
- X5 Retail Group N.V. MarketLine Company Profile (ISSN: )
- Xaar plc MarketLine Company Profile (ISSN: )
- Xanadoo Company MarketLine Company Profile (ISSN: )
- XAOS (ISSN: 1594-669X, )
- Xaragall (Manresa) (ISSN: 1131-5385, 2013-4479)
- The Xavier Zubiri review (ISSN: 1538-5795, )
- Xceed Mortgage Corporation MarketLine Company Profile (ISSN: )
- Xcel Energy Inc MarketLine Company Profile (ISSN: )
- Xcerra Corporation MarketLine Company Profile (ISSN: )
- Xchanging plc MarketLine Company Profile (ISSN: )
- Xconomy [BLOG] (ISSN: )
- Xeikon N.V. MarketLine Company Profile (ISSN: )
- Xenarthra (ISSN: , 3006-6077)
- Xenobiotica (ISSN: 0049-8254, 1366-5928)
- XenoPort, Inc. MarketLine Company Profile (ISSN: )
- Xenotransplantation (ISSN: 0908-665X, 1399-3089)
- Xerium Technologies, Inc. MarketLine Company Profile (ISSN: )
- Xerox Corporation MarketLine Company Profile (ISSN: )
- Xianggang-Jingji-Xuehui-Huikan / Hong Kong Economic Papers (ISSN: )
- Xibei Gongye Daxue Xuebao (ISSN: 1000-2758, 2609-7125)
- Xiehe Yixue Zazhi (ISSN: 1674-9081, )
- Xihmai. Revista de Investigación de la Universidad La Salle Pachuca (ISSN: 1870-6703, )
- Xilinx, Inc. MarketLine Company Profile (ISSN: )
- Xinhua Winshare Publishing & Media Co., Ltd MarketLine Company Profile (ISSN: )
- Xinjiang Goldwind Science & Technology Co., Ltd. MarketLine Company Profile (ISSN: )
- XinYa-Shuyuan-Xueshu-Niankan / Academic Annual (ISSN: )
- XinYa-Xueshu-Jikan / New Asia Academic Bulletin (ISSN: )
- Xipe Totek (ISSN: 1870-2694, )
- XIth International Symposium for Biomechanics & Medicine in Swimming (ISSN: )
- XIUS MarketLine Company Profile (ISSN: )
- XL Group Plc MarketLine Company Profile (ISSN: )
- XML Journal (ISSN: 1534-9780, )
- XO Communications, LLC MarketLine Company Profile (ISSN: )
- XO Group Inc. MarketLine Company Profile (ISSN: )
- XOMA Corporation MarketLine Company Profile (ISSN: )
- XP Power Ltd. MarketLine Company Profile (ISSN: )
- XPO Logistics, Inc. MarketLine Company Profile (ISSN: )
- Xponential, Inc. MarketLine Company Profile (ISSN: )
- XPress (ISSN: 1617-562X, )
- XPRESS (ISSN: )
- XRDS: Crossroads, The ACM Magazine for Students (ISSN: 1528-4972, 1528-4980)
- XRF newsletter (ISSN: 1608-4632, )
- XRS Corporation MarketLine Company Profile (ISSN: )
- Xstrata plc MarketLine Company Profile (ISSN: )
- XTL Biopharmaceuticals Ltd. MarketLine Company Profile (ISSN: )
- XTRA Lease MarketLine Company Profile (ISSN: )
- Xtra Toronto (ISSN: 0829-3384, )
- Xtra west (ISSN: 1198-0613, 1924-360X)
- Xueji : Xianggang Zhongwen Daxue Jiaoyu Xueyuan Yuankan / Studium: The Bulletin of the School of Education of the Chinese University of Hong Kong (ISSN: )
- Xul: Signo Viejo y Nuevo; Revista de Poesía (ISSN: )
- XVII-XVIII (ISSN: 0291-3798, 2117-590X)
- XVIII, new perspectives on the eighteenth century (ISSN: 1544-9009, )
- xyHt (ISSN: )
- Xylem Inc. MarketLine Company Profile (ISSN: )
- Xyratex Ltd MarketLine Company Profile (ISSN: )
- Вісник Харківського національного університету: Серія xімія (ISSN: 2220-637X, 2220-6396)