Pierre-Félix Guattari (April 30, 1930 – August 29, 1992) was a French psychotherapist, philosopher, semiologist, and activist. He founded both schizoanalysis and ecosophy, and is best known for his intellectual collaborations with Gilles Deleuze.
The name Felix reminds me of an athlete. As in the boxer Felix Trinidad, and some baseball players too. This name sounds masculine. I would name my kid this.