Intensive care unit (ICU) nurses were at the forefront of patient care during the coronavirus (COVID‐19) pandemic. To date, no studies have explored what it meant to be a ‘good nurse’ in this unique and challenging context. As such, the aim of this study was to construct the meaning of the ‘good nurse’ in ICUs during a pandemic. Semi‐structured interviews were conducted with 25 ICU nurses from three ICUs in Kuwait, who had worked during the COVID‐19 pandemic. The data were analysed using Charmaz's grounded theory methodology. The analysis showed that the good ICU nurse was defined by their sense of duty, which motivated compassionate and dedicated patient care. However, the nurses' attempts to demonstrate virtue also had negative consequences for them. Selflessness led to unsustainable self‐sacrifice, empathy led to emotional labour, and efforts to remain patient and respectful led to exhaustion as the nurses found themselves under increasing pressure. Attempts to remain mentally strong may have partially protected them from stress, but also deprived them of an outlet for authentic emotional expression and support. Ultimately, their efforts to preserve their quality of patient care despite the numerous challenges of the pandemic came at an increasing cost, and resulted in moral distress and impaired well‐being.