| Why heaven kissed earth: the Christology of the Puritan Reformed orthodox theologian, Thomas Goodwin (1600-1680) by Randall J. Pederson (About) | | |
| Why I Believe the Westminster Confession of Faith is Valid Today by G. I. Williamson (WCF) | | |
| Why Study the Westminster Assembly? by Chad B. Van Dixhoorn (WA) | | |
| Why the World was Created in 4004 B.C.: Archbishop Ussher and Biblical Chronology by James Barr (About) | | |
| Wilkinson, Henry (1610-1675), Church of England clergyman and ejected minister by Jim Spivey (About) | | |
| William Ames and the Westminster Assembly by Allen Stanton (WA) | | |
| William Fiennes, First Viscount of Say and Sele: A Study in the Politics of Opposition, 1620-1640 by Nelson Parker Bard Jr. (About) | | |
| William Gouge: preacher and scholar by Kenneth Allen East (About) | | |
| William Twisse’ theological methodology: Concerning the order of decree and the object of predestination by Byung Soo Han (About) | | |
| Wilson, Thomas (c. 1601-1653), Church of England clergyman by Jacqueline Eales (About) | | |
| Windows on Westminster: a look at the men, the work and the enduring results of the Westminster Assembly by David W. Hall (About) | | |
| Winram [Windrahame], George, of Liberton, Lord Liberton (d. 1650), politician and judge by David Stevenson (About) | | |
| Word and Spirit in the Confessions of the European Reformation by Hendrik van den Belt (WCF) | | |
| Worship and Discipline: Context of Independent Church Order in the Westminster Assembly by Robert S. Paul (WA) | | |
| Worship and Sacraments by Susan Hardman Moore (DPW) | | |
| Worship in the Kirk: Knox, Westminster, and the 1940 Book by A. C. Cheyne (WA) | | |
| Worship in the Reformed Church by Robert Gibson Rayburn (DPW, WCF) | | |
| Worthies of Westminster by John S. MacIntosh (WA) | | |
| Writing at the edge of promises: negotiating the puritan apocalypse by Crawford Gribben (About) | | |
| Young, Thomas (c. 1587-1655), Church of England clergyman and college head by Edward Jones (About) | | |
