喜泉卷耳（学名：Cerastium fontanum）为石竹科卷耳属的植物。分布在欧洲、亚洲、非洲等地，生长于海拔20米至4,600米的地区，目前尚未由人工引种栽培。

Cerastium fontanum, also called Mouse-ear chickweed, Common mouse-ear, or Starweed is a species of mat forming perennial, or rarely, annual plant. It is native to Europe but introduced elsewhere. Mouse-ear chickweed's identifying characteristics are tear-shaped leaves growing opposite one another in a star pattern, hairy leaves, and small white flowers. Mouse-ear chickweed typically grows to 4"-8" tall vertically and spreads horizontally along the ground via the formation of roots wherever the stem falls over and contacts the ground.