| Zaanen, Adriaan | Theory of Integration | 28 Measure and integration |
| Zaidman, Samuel | Equations Differentielles Abstraites | 47 Operator theory |
| Zarantonello, Eduardo | Contributions to Nonlinear Functional Analysis | 46 Functional analysis |
| Zariski, Oscar | Commutative Algebra | 13 Commutative algebra |
| Zariski, Oscar | Oscar Zariski: Collected Papers | 14 Algebraic geometry |
| Zelinsky, Daniel | A First Course in Linear Algebra | 15 Linear and multilinear algebra; matrix theory |
| Zeller-Meier, G. | Produits Croises D'Une C*-Algebre Par Un Groupe D'Automorphismes | 46 Functional analysis |
| Zettl, Anton | Strum-Liouville Theory | 34 Ordinary differential equations |
| Zhelobenko, Dmitrii | Compact Lie Groups and their Representations | 22 Topological groups, Lie groups |
| Zhevlakov, K. A. | Rings that are Nearly Associative | 17 Nonassociative rings and algebras |
| Ziegler, Günter | Do I Count? Stories from Mathematics | 00 General and overarching topics; collections |
| Ziemer, William | Weakly Differentiable Functions | 46 Functional analysis |
| Zissos, D. | Problems and Solutions in Logic Design | 02 (03) Mathematical logic and foundations |
| Zong, Chuanming | Strange Phenomena in Convex and Discrete Geometry | 52 Convex and discrete geometry |
| Zong, Chuanming | Sphere Packings | 52 Convex and discrete geometry |
| Zuily, Claude | Uniqueness and Non-Uniqueness in the Cauchy Problem | 35 Partial differential equations |
| Zygmund, Antoni | Trigonometrical Series | 40 Sequences, series, summability |