<!--
{
  "availability" : [
    "iOS: -",
    "iPadOS: -",
    "macCatalyst: -",
    "tvOS: -",
    "visionOS: -"
  ],
  "documentType" : "symbol",
  "framework" : "UIKit",
  "identifier" : "/documentation/UIKit/NSLayoutConstraint/Attribute/bottom",
  "metadataVersion" : "0.1.0",
  "role" : "Case",
  "symbol" : {
    "kind" : "Case",
    "modules" : [
      "UIKit"
    ],
    "preciseIdentifier" : "c:@E@NSLayoutAttribute@NSLayoutAttributeBottom"
  },
  "title" : "NSLayoutConstraint.Attribute.bottom"
}
-->

# NSLayoutConstraint.Attribute.bottom

The bottom of the object’s alignment rectangle.

```
case bottom
```

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)