- Warlock, Peter
- Watts, Wintter
- Weatherly, Frederick E.
- Weber, Carl Maria von
- Webern, Anton von
- Weckerlin, Jean-Baptiste Théodore
- Weigl, Joseph
- Weill, Kurt
- Weingartner, Felix Paul
- Werner, J. Heinrich W.
- Wesley, Samuel S.
- White, Maude Valérie
- Whithorne, Emerson
- Widor, Charles-Marie
- Wiener, Jean
- Wilhelmj, August Daniel Ferdinand Victor
- Williams, Charles Lee
- Wilson, Henry Lane
- Wolf, Hugo
- Wolff, Erich J.
- Wood, Charles
- Wüllner, Franz
- Wuzél, Hans
- Yon, Pietro
- Young, Anthony
- Zandonai, Riccardo
- Zeller, Carl
- Zelter, Karl Friedrich
- Zemlinsky, Alexander
- Zillig, Winfried
- Zingarelli, Niccola Antonio
- Zorzi, Juan Carlos
- Zumsteeg, Emilie
- Zumsteeg, Johann Rudolf
