Western animation/G

Ga

 * Garfield and Friends - SE7-EP15: Jon is shrunk by a witch to play miniature baseball.

Ge

 * George Shrinks: There are several moments where George (a tiny person) interacts with other females (such as Becky and his mother), making them para-giantesses.

Gl

 * Glitch Techs - EP03: "Going, Going, Gauntlet!". The protagonists must face a goblin, but unexpectedly it turns out to be very small. He was so small that one step is enough to defeat him. Para-giantess: Miko Kubota.

Go

 * Goldie and Bear - SE2-EP22a: Tess is introduced as a friend for Giant his size, but he gets too nervous around her.

Gr

 * Gravity Falls
 * Gravity Falls - SE1-EP11:
 * Gravity Falls - SE2-EP13: