A glass ceiling is a metaphor usually applied to women, used to represent an invisible barrier that prevents a given demographic from rising beyond a certain level in a hierarchy. The metaphor was first used by feminists in reference to barriers in the careers of high-achieving women. It was coined by Marilyn Loden during a speech in 1978.

In the United States, the concept is sometimes extended to refer to racial inequality. Racialised women in white-majority countries often find the most difficulty in "breaking the glass ceiling" because they lie at the intersection of two historically marginalized groups: women and people of color. East Asian and East Asian American news outlets have coined the term "bamboo ceiling" to refer to the obstacles that all East Asian Americans face in advancing their careers. Similarly, a multitude of barriers that refugees and asylum seekers face in their search for meaningful employment is referred to as the "canvas ceiling".

Within the same concepts of the other terms surrounding the workplace, there are similar terms for restrictions and barriers concerning women and their roles within organizations and how they coincide with their maternal responsibilities. These "Invisible Barriers" function as metaphors to describe the extra circumstances that women go through, usually when they try to advance within areas of their careers and often while they try to advance within their lives outside their work spaces.

"A glass ceiling" represents a blockade that prohibits women from advancing toward the top of a hierarchical corporation. These women are prevented from getting promoted, especially to the executive rankings within their corporation. In the last twenty years, the women who have become more involved and pertinent in industries and organizations have rarely been in the executive ranks.

The United States Federal Glass Ceiling Commission (1991–1996) defined the glass ceiling as "the unseen, yet unbreachable barrier that keeps minorities and women from rising to the upper rungs of the corporate ladder, regardless of their qualifications or achievements."

David Cotter et al. (2001) defined four distinctive characteristics that must be met to conclude that a glass ceiling exists. A glass ceiling inequality represents:

Cotter and colleagues found that glass ceilings are correlated strongly with gender, with both white and minority women facing a glass ceiling in the course of their careers. In contrast, the researchers did not find evidence of a glass ceiling for African-American men.

The glass ceiling metaphor has often been used to describe invisible barriers ("glass") through which women can see elite positions but cannot reach them ("ceiling"). These barriers prevent large numbers of women and ethnic minorities from obtaining and securing the most powerful, prestigious and highest-grossing jobs in the workforce. Moreover, this effect prevents women from filling high-ranking positions and puts them at a disadvantage as potential candidates for advancement.