Haisley is a modern American compound name combining Hazel + -leigh (meadow, clearing). A top-1000 US baby name since 2018. The Hazel tree has been a symbol of wisdom and protection across Celtic and Norse mythology; in the Irish tradition, the Salmon of Knowledge ate hazelnuts that fell into the river. Haisley Jacobs — American gymnast. Haisley Patrick — American competitive cheerleader. The Haisley spelling appeared in 2018 and has surged steadily; the related Hadley peaked at #98 in 2017. Haisley Faith — American social-media influencer.
Haisley does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
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In Pythagorean numerology the letters of Haisley reduce to 7, The Seeker. This is a traditional interpretive system, not a factual claim about the name.