Kai Madison TrumpKai Trump spoke onstage on the third day of the Republican National Convention last year. Chip Somodevilla/Getty Images Kai Trump is the oldest of Donald Trump's grandchildren at 17 years old. She's also the oldest child of Donald Trump Jr. and Vanessa Trump and was born in May 2007.Her parents, who were married from 2005 to 2018, have five children together.Kai spoke onstage at the Republican National Convention last year, making her first foray onto the political stage, and sat on the inauguration stage in January when Trump was sworn in.She's also set to play college golf and verbally committed to playing at the University of Miami beginning in 2026, she shared on Instagram in August.She thanked Donald Trump, who owns more than a dozen golf courses, in the post, writing, "I would like to thank my Grandpa for giving me access to great courses and tremendous support."Donald John Trump IIIDonald John Trump III, Kai Trump, and Donald Trump at the 2024 RNC. IM WATSON/AFP/Getty Images After Kai came Donald J. Trump III, who will celebrate his 16th birthday on February 18. Donald Trump Jr. posted a photo with all of his kids, including his 15-year-old son, on Thanksgiving.He was also onstage at the RNC in 2024 and attended the 2025 inauguration.Tristan Milos TrumpVanessa Trump and her son Tristan in April 2017. JIM WATSON/AFP/Getty Images Donald Trump Jr. and Vanessa Trump's third child, Tristan, was born in October 2011 and is now 13 years old.Spencer Frederick TrumpSpencer Trump in 2018. Cindy Ord/Getty Images Spencer is the fourth of Donald Trump Jr.'s five children; he was born in October 2012 and is 12 years old.His middle name comes from his great-great-grandfather and his great-grandfather, Frederick Trump and Frederick Trump Sr., respectively.Donald Trump also had an older brother, Frederick Trump Jr., who died in 1981.Chloe Sophia TrumpDonald Trump Jr. and Chloe Trump in 2018. Cindy Ord/Getty Images Chloe is the youngest child of Donald Trump's eldest child. She was born in June 2014, making her 10 years old.Her dad posted a photo on Instagram in December of her and her older brother Spencer fishing.Arabella Rose KushnerArabella Kushner and her mother, Ivanka Trump, in January. Michael M. Santiago/Getty Images Donald Trump's second child is Ivanka Trump, who married Jared Kushner in 2009. She gave birth to their first child, Arabella, in July 2011. Arabella is now 13 years old.Ivanka Trump regularly shares photos of her kids on social media. In a July 2024Instagrampost about Arabella's birthday, Ivanka wrote that her daughter loved singing, playing the piano, riding horses, and Brazilian jiu-jitsu.Joseph Frederick KushnerJared Kushner with Joseph in 2023. MEGA/GC Images/Getty Images Ivanka's second child, Joseph, was born in October 2013, making him 11 years old now.Ivanka said on her Instagram that Joseph liked computers, dirt biking, and skateboarding.Joseph and his cousin Spencer, who are 11 months apart, share the same middle name.Theodore James KushnerPresident Donald Trump attended Super Bowl LIX with his daughter, Ivanka, and his grandson, Theodore. TIMOTHY A. CLARY/AFP/Getty Images Ivanka's youngest child, Theodore, was born in March 2016. He's 8 years old and loves football, parkour, poker, and Rubik's cubes, his mom wrote on her Instagram.He was seen alongside his mother and grandfather in their suite at Super Bowl LIX in New Orleans on February 9.Eric Luke TrumpLuke came onstage to support his grandfather at a rally in September. Anna Moneymaker/Getty Images Donald Trump's third child, Eric, has been married to Lara Trump since 2014.Their first child, Eric Luke (who goes by his middle name), was born in September 2017, making him 7 years old.Luke has appeared at Trump rallies, such as the September 2024 North Carolina rally pictured above, and appeared at the 2024 RNC with his sister.Carolina Dorothy TrumpDonald Trump held his granddaughter Carolina onstage at a campaign rally in September. Anna Moneymaker/Getty Images For now, 5-year-old Carolina is Donald Trump's youngest grandchild. She was born to Eric and Lara Trump in August 2019.