Slack, West Yorkshire, a village in Calderdale, England.Slack River in Pas-de-Calais, northern FranceSlacks Creek, Queensland, a suburb of Logan City, Queensland, Australia
Other
Charlie Slack, American basketball playerSlack (project management), a term used in project managementThe central belief of the Church of the SubGeniusSmall pieces of low-grade bituminous coal.Slackness, lyrics of a crude or bawdy nature in dancehall music are often called "slack".Slacks, a synonym for trousersFile slack, a kind of internal fragmentationThe valley or trough between dunes.Slack variable, a mathematical concept.Slack action between railway car couplings
