This page lists every known solution for the clue “Newton’S First Name” in Crossword Challenge. Because this clue can appear in different puzzles (levels) with different required answers, we first list all the answers, then show which one appears in each puzzle below.
Newton’S First Name Crossword Challenge Answers (All Variants)
Isaac
If more than one answer is listed, open your puzzle page below to confirm the one used there.
All Known Answers for Newton’S First Name Clue
Where This Clue Appears
Last Checked: September 12, 2025