| artist,genre,country | |
| Z,Crossover Prog,United States | |
| WIL .,Psychedelic/Space Rock,Belgium | |
| Z.O.A,Heavy Prog,Japan | |
| ZA SIÓDMA GÓRA,Progressive Electronic,Poland | |
| ZAAL,Jazz Rock/Fusion,Italy | |
| ZAAR,RIO/Avant-Prog,France | |
| THIERR ABOITZEFF,RIO/Avant-Prog,France | |
| MICHE ACHA,Crossover Prog,France | |
| ZACHT AUTOMAAT,Krautrock,Canada | |
| ZADRI & MO,Progressive Electronic,France | |
| ZAG AND THE COLOURED BEADS,RIO/Avant-Prog,United Kingdom | |
| ZAGUAN,Prog Folk,Spain | |
| EDWARD M AJDA,Progressive Electronic,United States | |
| ZALEM,Post Rock/Math rock,France | |
| ZALYS,Progressive Electronic,France | |
| ZAMLA MAMMAZ MANNA,RIO/Avant-Prog,Sweden | |
| ZANOV,Progressive Electronic,France | |
| ZAO,Zeuhl,France | |
| ZAPOTEC,Eclectic Prog,United States | |
| DWEEZI APPA,Crossover Prog,United States | |
| FRAN APPA,RIO/Avant-Prog,United States | |
| RICCARD APPA,Rock Progressivo Italiano,Italy | |
| ZAPRYAN,Progressive Metal,Germany | |
| ZARAGON,Symphonic Prog,Denmark | |
| ADRIÁN ÁRATE,Jazz Rock/Fusion,Mexico | |
| ZARATHUSTRA,Heavy Prog,Germany | |
| ZARATHUSTRA,Neo-Prog,Germany | |
| ZARG,Crossover Prog,Brazil | |
| ZARTONG,Prog Folk,Armenia | |
| ZATOKREV,Experimental/Post Metal,Switzerland | |
| ZAUBER,Prog Folk,Italy | |
| ZAUM,Rock Progressivo Italiano,Italy | |
| STEFA AUNER,Crossover Prog,Germany | |
| ZAUSS,RIO/Avant-Prog,Multi-National | |
| JO AWINUL,Jazz Rock/Fusion,Austria | |
| ZAZU,Crossover Prog,United States | |
| TO É,RIO/Avant-Prog,Brazil | |
| ZEBULON,Symphonic Prog,Germany | |
| ZEBULON PIKE,Experimental/Post Metal,United States | |
| ZECHS MARQUISE,Eclectic Prog,United States | |
| ZED,Progressive Electronic,France | |
| ZED,Jazz Rock/Fusion,United States | |
| ZED & I BOLIDI LENTI,Rock Progressivo Italiano,Italy | |
| ZEIT,Prog Folk,Italy | |
| ZEITGEISTS,Psychedelic/Space Rock,Thailand | |
| ZELLO,Crossover Prog,Sweden | |
| ZEMENT,Krautrock,Germany | |
| ZEMLJA BROJ 9,Psychedelic/Space Rock,Serbia | |
| ZEN,Progressive Metal,Italy | |
| ZEN CARNIVAL,Crossover Prog,United States | |
| ZEN ROCK AND ROLL,Symphonic Prog,United States | |
| WUL ENDIK,Indo-Prog/Raga Rock,United States | |
| ZENERIK,RIO/Avant-Prog,Greece | |
| ZENI GEVA,Experimental/Post Metal,Japan | |
| ZENIT,Neo-Prog,Switzerland | |
| ZENITH EFFLUVEUM,Psychedelic/Space Rock,United States | |
| ZENOBIA,Neo-Prog,Germany | |
| MICHAE ENTNER,Jazz Rock/Fusion,United States | |
| ZENTRAEDI,Progressive Metal,United States | |
| ZERFAS,Crossover Prog,United States | |
| ZERO HOUR,Progressive Metal,United States | |
| ZEROESQUE,Eclectic Prog,United States | |
| ZEROGRAVITY,Progressive Metal,Belgium | |
| ZEROTHEHERO,Crossover Prog,Italy | |
| ZETTAIMU,Crossover Prog,Japan | |
| ZEVIOUS,RIO/Avant-Prog,United States | |
| ZHAOZE,Post Rock/Math rock,China | |
| ZHODA,Progressive Metal,United States | |
| ZHONGYU,Eclectic Prog,United States | |
| ZHRINE,Tech/Extreme Prog Metal,Iceland | |
| ZIERLER,Progressive Metal,Denmark | |
| ZIFF,Neo-Prog,Germany | |
| ZIG ZAG,Zeuhl,France | |
| ZINGALE,Jazz Rock/Fusion,Israel | |
| HARTMU INN,Crossover Prog,Germany | |
| ZIO,Neo-Prog,United Kingdom | |
| ZION,Heavy Prog,Italy | |
| ZIP TANG,Eclectic Prog,United States | |
| ZIPPO ZETTERLINK,Krautrock,Germany | |
| THEODOR IRAS,Progressive Metal,Greece | |
| ZITA ENSEMBLE,Eclectic Prog,Italy | |
| ZJEDNOCZONE SIłY NATURY MECH,Neo-Prog,Poland | |
| ZLETOVSKO,RIO/Avant-Prog,Japan | |
| ZLYE KUKLY,Prog Folk,Israel | |
| ZNR,RIO/Avant-Prog,France | |
| ZOAMBO ZOET WORKESTRAO,RIO/Avant-Prog,Slovenia | |
| ZODIAC SUNRISE,Psychedelic/Space Rock,Finland | |
| ZODIAK TRIO,Jazz Rock/Fusion,Germany | |
| ZOFFF,Psychedelic/Space Rock,United Kingdom | |
| ZOIKHEM,Zeuhl,France | |
| ZOKU METSU,Krautrock,United States | |
| ZOLTAN,Progressive Electronic,United Kingdom | |
| ZOMB,Eclectic Prog,France | |
| ZOMBI,Progressive Electronic,United States | |
| L OMBIE ET SES BIZONS,Jazz Rock/Fusion,France | |
| ZOMBIE FROGS,Progressive Metal,United States | |
| ZOMBIE PICNIC,Post Rock/Math rock,Ireland | |
| ZOMBY WOOF,Symphonic Prog,Germany | |
| ZON,Prog Related,Canada | |
| ZONDA PROJECKT,Jazz Rock/Fusion,Argentina | |
| ZONE SIX,Psychedelic/Space Rock,Germany | |
| TH ONE,Eclectic Prog,United States | |
| ZONK MONK,Neo-Prog,Japan | |
| ZOO,Crossover Prog,Netherlands | |
| ZOOKEEPER'S PALACE,Crossover Prog,United States | |
| ZOOLIXO LIGO,RIO/Avant-Prog,Greece | |
| ZOPP,Canterbury Scene,United Kingdom | |
| ZOPPO TRUMP,Krautrock,Germany | |
| ZORCH,Progressive Electronic,United Kingdom | |
| JOH ORN,RIO/Avant-Prog,United States | |
| ZOUNDWORKS,Symphonic Prog,Netherlands | |
| ZOVIET FRANCE,Progressive Electronic,United Kingdom | |
| ZOZOBRA,Experimental/Post Metal,United States | |
| ZRNI,Prog Folk,Czech Republic | |
| ZS,RIO/Avant-Prog,United States | |
| ZU,RIO/Avant-Prog,Italy | |
| MICHAE UCKER,Heavy Prog,United States | |
| FABI UFFANTI,Crossover Prog,Italy | |
| ZUKR,Post Rock/Math rock,France | |
| ZUNDAPP,Heavy Prog,Italy | |
| ZUT UN FEU ROUGE,RIO/Avant-Prog,Sweden | |
| TOMM VONCHECK,Neo-Prog,United States | |
| ZVOYN,Experimental/Post Metal,France | |
| ZWEISTEIN,Krautrock,Germany | |
| ZWEITON,Eclectic Prog,Germany | |
| ZWOYLD,Zeuhl,France | |
| ZYCLOPE,Symphonic Prog,Spain | |
| ZYDRA,Heavy Prog,Chile | |
| ZYGOAT,Progressive Electronic,United States | |
| TH YGOMA DISPOSAL,Tech/Extreme Prog Metal,Belgium | |
| ZYMA,Canterbury Scene,Germany | |
| ZYPRESSEN,RIO/Avant-Prog,Japan | |
| JAKU YTECKI,Progressive Metal,Poland | |
| ZYTOSPACE,Progressive Electronic,Spain | |
| ZYWIOLAK,Prog Folk,Poland | |
| ZZEBRA,Jazz Rock/Fusion,United Kingdom | |