Lea Nikel (Hebrew: לאה ניקל; born 1918, died 2005) was an Israeli abstract artist.

She took part in numerous international group exhibitions, including the Venice Biennale in 1964.

The Tel Aviv Museum of Art organized a retrospective exhibition of her paintings in 1995.

[3] In 2023 her work was included in the exhibition Action, Gesture, Paint: Women Artists and Global Abstraction 1940-1970 at the Whitechapel Gallery in London.

She was known for buoyant compositions consisting of rough-edged blocks of color and scribbly, calligraphic lines that together conveyed a sense of imaginative excitement and urgent sensuousness.