Asoka is a 2001 film giving a largely fictional account of Ashoka's life story. It was directed by Santosh Sivan and stars Shahrukh Khan as Ashoka and Kareena Kapoor as Kaurwaki, a princess of Kalinga.
The Ashoka tree is a flowering tree found in India and Sri Lanka.
The Ashoka pillar is a pillar in the garden of Sarnath.
Ashoka is a citizen sector organization (CSO), which is shaping the citizen sector by investing in social entrepreneurship around the world. See http://www.ashoka.org