Order of Contents
Nahum has very few older, evangelical, stand alone commentaries in English online. However, there are plenty of good commentaries on the book if you check:
To fill the void here, for lack of any better alternatives, a few (prominent) liberal, critical commentaries on Nahum have been thrown in. Though they have little regard for the authenticity of the text and are of zero spiritual help, for someone who just needs something on the book, they may supply the need.
Luther, Martin – ‘Lectures on Nahum’ in Lectures on the Minor Prophets, vol. 1 in Luther’s Works ed. Hilton C. Oswald (Concordia, 1973), pp. 281-318
Douglas, George C.M. – ‘Nahum’ in The Six Intermediate Minor Prophets in Hand-Books for Bible Classes, eds. Dods & Whyte (NY: Scribner, 1890), pp. 91-110
Douglas (1826-1904) was a Hebraist in the Free Church of Scotland, having studied under Thomas Chalmers; he came to be a principle of the Free Church College. “He was a scholarly conservative, skeptical of higher critical views.” – DoSCH&T
Bennett, T. Miles – Books of Nahum & Zephaniah: a Study Manual in Shield Bible Study Series Buy (Baker, 1968) 102 pp.
‘Contains an excellent treatment of the historical sections of these books.. Amillennial.’ – Cyril J. Barber
Middle of the Road
Maier, Walter A. – The Book of Nahum: a Commentary (St. Louis: Concordia, 1959) 395 pp. ToC Concordia is Lutheran. This was reprinted by Baker in the Thornapple Commentary series. The commentaries in this series focus on exegesis, are intermediate to advanced, and the authors are usually evangelical or conservative liberals.
‘A lengthy, critical commentary in which every word of each verse is evaluated and expounded in the light of the theme of the book.’ – Cyril J. Barber
Davidson, A.B. – ‘Nahum’ in The Books of Nahum, Habakkuk & Zephaniah with Introduction & Notes (1896), pp. 9-44
Driver, S.R. – ‘Nahum’ in The Minor Prophets, Introductions, Revised Version with Notes (1906), pp. 3-48
Driver (1846–1914) was well-known, amongst other things, for his authorship in the Brown-Driver-Briggs Hebrew Lexicon.
‘Liberal. An explanation of these prophetic writings which is not overly critical, but builds upon the higher critical data which was current at the turn of the century.’ – Cyril J. Barber
The Early Church on Nahum
Ferreiro, Alberto – Ancient Christian Commentary on Scripture: The Twelve Prophets Buy
Coggins, Richard & Jin H. Han – Six [Last] Minor Prophets Through the Centuries (Blackwell, 2011) 290 pp.
Jerome (c. 342–347 – 420)
Theodore of Mopsuestia – ‘Commentary on the Prophet Nahum’ in Commentary on the Twelve Prophets trans. Robert C. Hill in Fathers of the Church (Catholic University of America Press, 2004), pp. 245-65
Theodore (c. 350 – 428)
Cyril of Alexandria – ‘Commentary on the Prophet Nahum’ in Commentary on the Twelve Prophets, vol. 2 trans. Robert C. Hill in Fathers of the Church (Catholic University of America Press, 2007), pp. 281-330
Cyril (c. 376 – 444)
Theodoret of Cyrus – Commentary on the Twelve Prophets Ref (Holy Cross Orthodox Press, 2006) 378 pp.
Theodoret (c. 393 – c. 458/466)
Jewish Medieval Commentary on Nahum
Rashi – On Nahum at Patristic Bible Commentary
ben Eli, Japheth, the Koraite – Arabic Commentary on Nahum with Introduction, Abridged Translation & Notes 11th Century 9 pp. The commentary in English starts on p. 33.
On Nahum Generally
Allis, O.T. – ‘Nahum, Nineveh, Elkosh’ 13 pp. n.d.
Allis was a conservative Old Testament scholar at early Westminster seminary.