In 2002, he was awarded an Honorary (because of his Irish citizenship) MBE for his services to the music industry. He has had twenty UK Top 40 albums as well as fifteen Top 40 singles and has sold 10 million records to date. O'Donnell garnered considerable success in North America, when he starred in seven concert specials on public television stations (PBS) in the United States. He has charted 18 albums in the Top 20 of the U.S. Billboard's World Music Album Chart and also has had several entries in the Independent Albums Chart too. He was afforded an RTÉ Christmas Day special, Daniel at 50, in 2011 to mark his 50th birthday.
O'Donnell was married, aged 40, on 4 November 2002, to 41-year-old divorcée Majella McLennan from Thurles, whom he met on holiday in Tenerife three years previously. McLennan received an annulment of her previous marriage, by which she had two children (Siobhan and Michael). The couple live in Meenbanad, County Donegal, and spend time at their second home in Tenerife. Daniel is proficient in Irish and presented a show in that language for the broadcaster TG4.