| Giant Size Hostas | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'War Hero' | Dark-Green | Medial | Yellow | Nat-Sport | Pale-Lavender | July into August | Ellis, Gavin | --NR-- |
| 'War Paint' | Dark-Green | Medial | White | TC Sport | - | - | Naylor Creek Nursery | .2005 |
| 'Watercolours' | Med-Green | Streaked | Speckles | Nat-Sport | Pale-Lavender | July into August | Sligh, Barry | .2000 |
| 'Wet Umbrellas' | Med-Green | Streaked | Speckles | Nat-Sport | Pale-Lavender | June into July | Meyer, Bill | --NR-- |
| 'White Angel' | Dark-Green | Medial | White | TC Sport | Near-White | July | Anderson, Jim | --NR-- |
| 'White Cloud' | Dark-Green | - | - | Unknown | - | - | Balitewicz, Bob | --NR-- |
| 'Wicked Treasure' | Blue/Green | Streaked | Yellow | Hybrid | Pale-Lavender | July | Kuenster, Rod | .2019 |
| 'Willy Nilly' | Blue/Green | - | - | Hybrid | Near-White | June into July | Holly, Gladys & Ruh, Peter | .1998 |
| 'Willy Vanilly' | Blue/Green | - | - | Nat-Sport | Near-White | July | Holly, Gladys | --NR-- |
| 'Wind beneath My Wings' | Blue/Green | | - | Hybrid | Pale-Lavender | July | Hansen, Hans | .2019 |
| 'Winter Snow' | Light-Green | Marginal | White | TC Sport | Pale-Lavender | July | Anderson, Jim | .2003 |
| 'Winterberry Farm' | Light-Green | Marginal | White | Nat-Sport | Pale-Lavender | July | Anderson, Jim | --NR-- |
| 'Witten Lodge' | Blue/Green | - | - | Hybrid | Near-White | July into August | Gilligan, Madelon | .2015 |
| 'Wolcott' | Dark-Green | Streaked | Speckles | Hybrid | Pale-Lavender | June into July | Stone, David | .1982 |
| 'Wood Monster' | Med-Green | - | - | Unknown | - | July into August | Woods, Doyle. & Schulz, Ed | .2011 |
| 'Woolly Mammoth' | Blue/Green | Medial | Yellow | TC Sport | Near-White | June | Zilis, Mark | .2003 |
| 'Wu-La-La' | Dark-Green | Marginal | Light Green | TC Sport | Pale-Lavender | June into July | Walters Gardens | --NR-- |
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